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ASUS Z890 AYW GAMING WIFI W vs ASUS PRIME B860-PLUS-CSM

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

ASUS Z890 AYW GAMING WIFI W

UK manufacturer specification · Z890 AYW GAMING WIFI W

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Exact model & source notes

Z890 AYW GAMING WIFI W motherboard, identified in the ASUS UK catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.

Specifications checked 17 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHAT DIFFERS

ChipsetIntel® Z890 ChipsetIntel® B860 Chipset

The first of 10 verified differences, in the order listed below. Not a rating.

See the 10 verified differences

THE CONTENDER

ASUS PRIME B860-PLUS-CSM

UK manufacturer specification · PRIME B860-PLUS-CSM

Full product profile Official image

Exact model & source notes

PRIME B860-PLUS-CSM motherboard, identified in the ASUS UK catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.

Specifications checked 17 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

Z890 AYW GAMING WIFI W UK & US retailers

UK & US price history: no verified listing yet

PRIME B860-PLUS-CSM UK & US retailers

UK & US price history: no verified listing yet

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THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

SPECIFICATIONS SIDE BY SIDE7 topics

SELECTED TOPIC

01 / 07

Chipset

Different hardware. A chip name or generation does not quantify real-world performance.

ASUS Z890 AYW GAMING WIFI WIntel® Z890 Chipset

Manufacturer specification

Source 1

ASUS PRIME B860-PLUS-CSMIntel® B860 Chipset

Manufacturer specification

Source 1

Explore the full specifications

Plan the complete platform. Check the exact CPU-support list, required BIOS and memory validation before buying. PCIe generations and lane allocations can change with the processor. A socket match or slot count is not a guarantee that every component works together at its highest advertised setting.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

10 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.

Chipset

In Visual facts

ASUS Z890 AYW GAMING WIFI WIntel® Z890 Chipset

ASUS PRIME B860-PLUS-CSMIntel® B860 Chipset

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Different hardware. A chip name or generation does not quantify real-world performance.

Memory type, slots and limit

In Visual facts

ASUS Z890 AYW GAMING WIFI W4 x DIMM slots, max. 256GB, DDR5 Supports up to 9066+MT/s (OC), Non-ECC, Un-buffered,Clocked Unbuffered DIMM (CUDIMM)* Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III(AEMPIII) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market. ** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

ASUS PRIME B860-PLUS-CSM4 x DIMM slots, max. 256GB, DDR5 Supports up to 8666+MT/s (OC), Non-ECC, Un-buffered,Clocked Unbuffered DIMM (CUDIMM)*" Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III(AEMPIII) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market. * *Non-ECC, un-buffered DDR5 memory supports On-Die ECC function. 4 x DIMM slots, max. 256GB, DDR5 Support up to 8666+MT/s (OC), Non-ECC, Un-buffered,Clocked Unbuffered DIMM (CUDIMM)* Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III (AEMP III) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market. * Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Storage interfaces and restrictions

In Visual facts

ASUS Z890 AYW GAMING WIFI WTotal supports 4 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors(Series 2) * M.2_1 slot (Key M), type 2280/22110 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) Intel® Z890 Chipset M.2_3 slot (Key M), type 2280/22110 (supports PCIe 4.0 x4 mode) M.2_4 slot (Key M), type 2280 (supports PCIe 4.0 x4 & SATA modes) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports PCIe RAID 0/1/5/10, SATA RAID 0/1/5/10, M.2 slot from CPU only supports RAID 0/1/5.

ASUS PRIME B860-PLUS-CSMTotal supports 3 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors (Series 2)* M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) Intel® B860 Chipset M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 mode) M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10. Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors(series 2)* M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) Intel® B860 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x2 mode) M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10.

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Network interfaces and requirements

In Visual facts

ASUS Z890 AYW GAMING WIFI W1 x Realtek 2.5Gb Ethernet ASUS LANGuard; Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Supports 2.4/5GHz frequency band Bluetooth® v5.3* * The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.

ASUS PRIME B860-PLUS-CSM1 x Realtek 2.5Gb Ethernet ASUS LANGuard; M.2 slot only (Key E, CNVi & PCIe)* * Wi-Fi module is sold separately. M.2 slot only (Key E, CNVi & PCIe)* * Wi-Fi module is sold separately.

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Audio interfaces

In Visual facts

ASUS Z890 AYW GAMING WIFI WRealtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

ASUS PRIME B860-PLUS-CSMRealtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback" Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Expansion slots and restrictions

In Visual facts

ASUS Z890 AYW GAMING WIFI WIntel® Core™ Ultra Processors(Series 2)* 1 x PCIe 5.0 x16 slot Intel® Z890 Chipset 2 x PCIe 4.0 x16 slots (supports x4 mode) 1 x PCIe 4.0 x16 slot (supports x1 mode) * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

ASUS PRIME B860-PLUS-CSMIntel® Core™ Ultra Processors (Series 2)* 1 x PCIe 5.0 x16 slot Intel® B860 Chipset 1 x PCIe 4.0 x16 slot (supports x4 mode) - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals. Intel® Core™ Ultra Processors (Series 2) 1 x PCIe 5.0 x16 slot Intel® B860 Chipset 1 x PCIe 4.0 x16 slot (supports x4 mode) 1 x PCIe 4.0 x1 slot - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Show 4 more verified differences

Internal headers and connectors

In Visual facts

ASUS Z890 AYW GAMING WIFI WFan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Power Related 1 x 24-pin Main Power connector 2 x 8-pin +12V CPU Power connectors Storage Related 4 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 20Gbps connector (supports USB Type-C® with up to 30W PD/PPS Fast-charge ) 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen2 headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x S/PDIF Out header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin Front Panel System header 1 x Thunderbolt™ (USB4®) Header

ASUS PRIME B860-PLUS-CSMFan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector Storage related 3 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 5Gbps connector (supports USB Type-C®) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 header support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header 1 x Chassis Intrusion header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x S/PDIF Out header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin Front System Panel header 1 x Thunderbolt™ (USB4®) header Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Power Related 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector Storage Related 3 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 10Gbps connector (supports USB Type-C® ) 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 2 x Addressable Gen2 headers 1 x Aura RGB header 1 x Clear CMOS header 1 x Chassis Intrusion header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x M.2 slot (Key E) 1 x S/PDIF Out header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin Front System Panel header 1 x Thunderbolt™ (USB4®) header

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Listed operating systems

ASUS Z890 AYW GAMING WIFI WWindows 11(22H2 & later), Windows 10 64-bit(21H2 & later)

ASUS PRIME B860-PLUS-CSMWindows 11 (22H2 & later), Windows 10 64-bit(21H2 & later) Windows 11 (22H2 & later), Windows 10 64-bit(21H2 & later)

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Rear-panel ports

ASUS Z890 AYW GAMING WIFI W1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 3 x USB 10Gbps ports (3 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x Wi-Fi module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button

ASUS PRIME B860-PLUS-CSM1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 2 x USB 10Gbps ports (2 x Type-A) 1 x USB 5Gbps port (1 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI™ port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x USB 20Gbps port (1 x USB Type-C®) 2 x USB 5Gbps ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI™ port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

USB ports and headers

ASUS Z890 AYW GAMING WIFI WRear USB (Total 8 ports) 1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode)* 3 x USB 10Gbps ports (3 x Type-A) 4 x USB 2.0 ports (4 x Type-A)*** Front USB (Total 9 ports) 1 x USB 20Gbps connector (supports USB Type-C® with up to 30W PD/PPS Fast-charge )** 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports*** * USB Type-C® power delivery output: max. 5V/3A ** USB Type-C® power delivery output: 5V/9V max. 3A, 12V max 2.5A, 15V max. 2.0A *** USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth. USB_E5 port, USB_E6 port and USB_E7 port share the bandwidth.

ASUS PRIME B860-PLUS-CSMRear USB (Total 6 ports) 1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 2 x USB 10Gbps ports (2 x Type-A) 1 x USB 5Gbps port (1 x Type-A) 2x USB 2.0 ports (2 x Type-A) Front USB (Total 7 ports) 1 x USB 5Gbps connector (1 x USB Type-C®) 1 x USB 5Gbps header supports additional 2 USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports * USB Type-C® power delivery output: max. 5V/3A Rear USB (Total 5 ports) 1 x USB 20Gbps port (1 x USB Type-C®) 2 x USB 5Gbps ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 9 ports) 1 x USB 10Gbps connector(supports USB Type-C®)* 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports * USB Type-C® power delivery output: max. 5V/3A

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

Check the exact configuration and source conditions for your use.

Configuration & compatibility details (1)

CPU support and BIOS requirements

ASUS Z890 AYW GAMING WIFI WSupports Intel® Core™ Ultra Processors(Series 2), LGA1851* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 256(128+128) Mb Flash ROM, UEFI AMI BIOS

ASUS PRIME B860-PLUS-CSMSupport Intel® Core™ Ultra Processors (Series 2), LGA1851 Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. Support Intel® Core™ Ultra Processors (Series 2), LGA1851* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 256(128+128) Mb Flash ROM, UEFI AMI BIOS 2 x 128 Mb Flash ROM, UEFI AMI BIOS

Sources

ASUS Z890 AYW GAMING WIFI W

Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.

ASUS Z890 AYW GAMING WIFI W — official UK technical specifications

ASUS PRIME B860-PLUS-CSM

Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.

ASUS PRIME B860-PLUS-CSM — official UK technical specifications

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

2 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

ASUS Z890 AYW GAMING WIFI W

What it brings

Published motherboard interfaces and configuration are available from the exact-model ASUS specification source.
Manufacturer source

What to check

Compatibility and maximum operating modes depend on the source’s stated hardware, firmware and connection requirements; manufacturer figures are not independent measurements.
Manufacturer source

ASUS PRIME B860-PLUS-CSM

What it brings

Published motherboard interfaces and configuration are available from the exact-model ASUS specification source.
Manufacturer source

What to check

Compatibility and maximum operating modes depend on the source’s stated hardware, firmware and connection requirements; manufacturer figures are not independent measurements.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

13 of 13 specifications Sources in each row

Source-backed specifications for ASUS Z890 AYW GAMING WIFI W and ASUS PRIME B860-PLUS-CSM
Specification	ASUS Z890 AYW GAMING WIFI W	ASUS PRIME B860-PLUS-CSM

CPU socket Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	LGA1851	LGA1851
ChipsetDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Intel® Z890 Chipset	Intel® B860 Chipset
Form factor and dimensions Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )	ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
CPU support and BIOS requirementsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor. ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor. ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Supports Intel® Core™ Ultra Processors(Series 2), LGA1851* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 256(128+128) Mb Flash ROM, UEFI AMI BIOS	Support Intel® Core™ Ultra Processors (Series 2), LGA1851 Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. Support Intel® Core™ Ultra Processors (Series 2), LGA1851* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to https://www.asus.com/support/download-center/ for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 256(128+128) Mb Flash ROM, UEFI AMI BIOS 2 x 128 Mb Flash ROM, UEFI AMI BIOS
Listed operating systemsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Windows 11(22H2 & later), Windows 10 64-bit(21H2 & later)	Windows 11 (22H2 & later), Windows 10 64-bit(21H2 & later) Windows 11 (22H2 & later), Windows 10 64-bit(21H2 & later)

Memory type, slots and limitDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	4 x DIMM slots, max. 256GB, DDR5 Supports up to 9066+MT/s (OC), Non-ECC, Un-buffered,Clocked Unbuffered DIMM (CUDIMM)* Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III(AEMPIII) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market. ** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.	4 x DIMM slots, max. 256GB, DDR5 Supports up to 8666+MT/s (OC), Non-ECC, Un-buffered,Clocked Unbuffered DIMM (CUDIMM)" Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III(AEMPIII) Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market. * Non-ECC, un-buffered DDR5 memory supports On-Die ECC function. 4 x DIMM slots, max. 256GB, DDR5 Support up to 8666+MT/s (OC), Non-ECC, Un-buffered,Clocked Unbuffered DIMM (CUDIMM) Dual channel memory architecture DIMM Fit Supports Intel® Extreme Memory Profile (XMP) memory module ASUS Enhanced Memory Profile III (AEMP III) * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market. * Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.

Storage interfaces and restrictionsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Total supports 4 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors(Series 2) * M.2_1 slot (Key M), type 2280/22110 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) Intel® Z890 Chipset M.2_3 slot (Key M), type 2280/22110 (supports PCIe 4.0 x4 mode) M.2_4 slot (Key M), type 2280 (supports PCIe 4.0 x4 & SATA modes) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports PCIe RAID 0/1/5/10, SATA RAID 0/1/5/10, M.2 slot from CPU only supports RAID 0/1/5.	Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors (Series 2)* M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) Intel® B860 Chipset M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 mode) M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10. Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports* Intel® Core™ Ultra Processors(series 2)* M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) Intel® B860 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x2 mode) M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10.

Expansion slots and restrictionsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Intel® Core™ Ultra Processors(Series 2)* 1 x PCIe 5.0 x16 slot Intel® Z890 Chipset 2 x PCIe 4.0 x16 slots (supports x4 mode) 1 x PCIe 4.0 x16 slot (supports x1 mode) * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.	Intel® Core™ Ultra Processors (Series 2)* 1 x PCIe 5.0 x16 slot Intel® B860 Chipset 1 x PCIe 4.0 x16 slot (supports x4 mode) - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals. Intel® Core™ Ultra Processors (Series 2) 1 x PCIe 5.0 x16 slot Intel® B860 Chipset 1 x PCIe 4.0 x16 slot (supports x4 mode) 1 x PCIe 4.0 x1 slot - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.

USB ports and headersDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Rear USB (Total 8 ports) 1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode)* 3 x USB 10Gbps ports (3 x Type-A) 4 x USB 2.0 ports (4 x Type-A)* Front USB (Total 9 ports) 1 x USB 20Gbps connector (supports USB Type-C® with up to 30W PD/PPS Fast-charge ) 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports*** * USB Type-C® power delivery output: max. 5V/3A USB Type-C® power delivery output: 5V/9V max. 3A, 12V max 2.5A, 15V max. 2.0A * USB_E1 port, USB_E2 port, USB_E3 port and USB_E4 port share the bandwidth. USB_E5 port, USB_E6 port and USB_E7 port share the bandwidth.	Rear USB (Total 6 ports) 1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 2 x USB 10Gbps ports (2 x Type-A) 1 x USB 5Gbps port (1 x Type-A) 2x USB 2.0 ports (2 x Type-A) Front USB (Total 7 ports) 1 x USB 5Gbps connector (1 x USB Type-C®) 1 x USB 5Gbps header supports additional 2 USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports * USB Type-C® power delivery output: max. 5V/3A Rear USB (Total 5 ports) 1 x USB 20Gbps port (1 x USB Type-C®) 2 x USB 5Gbps ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 9 ports) 1 x USB 10Gbps connector(supports USB Type-C®)* 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports * USB Type-C® power delivery output: max. 5V/3A
Rear-panel portsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 3 x USB 10Gbps ports (3 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x Wi-Fi module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button	1 x USB 20Gbps port (1 x USB Type-C® with DP Alt mode) 2 x USB 10Gbps ports (2 x Type-A) 1 x USB 5Gbps port (1 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI™ port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x USB 20Gbps port (1 x USB Type-C®) 2 x USB 5Gbps ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI™ port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks
Audio interfacesDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.	Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback" Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Network interfaces and requirementsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	1 x Realtek 2.5Gb Ethernet ASUS LANGuard; Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Supports 2.4/5GHz frequency band Bluetooth® v5.3* * The Bluetooth® version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.	*1 x Realtek 2.5Gb Ethernet ASUS LANGuard; M.2 slot only (Key E, CNVi & PCIe) * Wi-Fi module is sold separately. M.2 slot only (Key E, CNVi & PCIe)* * Wi-Fi module is sold separately.**

Internal headers and connectorsDifferent Sources ASUS Z890 AYW GAMING WIFI W Manufacturer specification ASUS Z890 AYW GAMING WIFI W — official UK technical specifications ASUS PRIME B860-PLUS-CSM Manufacturer specification ASUS PRIME B860-PLUS-CSM — official UK technical specifications	Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Power Related 1 x 24-pin Main Power connector 2 x 8-pin +12V CPU Power connectors Storage Related 4 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 20Gbps connector (supports USB Type-C® with up to 30W PD/PPS Fast-charge ) 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen2 headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x S/PDIF Out header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin Front Panel System header 1 x Thunderbolt™ (USB4®) Header	Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector Storage related 3 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 5Gbps connector (supports USB Type-C®) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 header support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header 1 x Chassis Intrusion header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x S/PDIF Out header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin Front System Panel header 1 x Thunderbolt™ (USB4®) header Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Power Related 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector Storage Related 3 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 10Gbps connector (supports USB Type-C® ) 2 x USB 5Gbps headers support 4 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 2 x Addressable Gen2 headers 1 x Aura RGB header 1 x Clear CMOS header 1 x Chassis Intrusion header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x M.2 slot (Key E) 1 x S/PDIF Out header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin Front System Panel header 1 x Thunderbolt™ (USB4®) header

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CPU socket: LGA1851
Chipset: Intel® Z890 Chipset
Form factor and dimensions: ATX Form Factor 12 inch x 9.6inch ( 30.5 cm x 24.4 cm )

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Form factor and dimensions: ATX Form Factor 12 inch x 9.6inch ( 30.5 cm x 24.4 cm )

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CPU socket: LGA1851
Chipset: Intel® Z890 Chipset
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CPU socket: LGA1851
Chipset: Intel® Z890 Chipset
Form factor and dimensions: ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.