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ASUS PRIME B660-PLUS D4

UK manufacturer specification

CPU socket
LGA1700
Chipset
Intel® B660 Chipset
Form factor and dimensions
ATX, 30.5cm x 24.4cm

PRIME B660-PLUS D4 motherboard, identified in the ASUS UK catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.

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THE ACTUAL PRODUCT
ASUS PRIME B660-PLUS D4 official product image
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with ASUS PRIME Z690-A
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Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.

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The nearest checked motherboards by key specifications, with what differs from the ASUS PRIME B660-PLUS D4. The first matches the Compare button above.

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Key strengths

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

Manufacturer source
The checks that matter.

Before you buy

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

Manufacturer source
Build around it.

Works with

Products in this catalogue that list the same socket or memory type as the ASUS PRIME B660-PLUS D4. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.

Start a build with thisOpens My setups with the ASUS PRIME B660-PLUS D4 in place and checks each part you add
Every specification. With its source.

Full specifications

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Exact configuration: UK manufacturer specification · PRIME B660-PLUS D4

12 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.

Platform & board

3 items
CPU socket
LGA1700Source
Chipset
Intel® B660 ChipsetSource
Form factor and dimensions
ATX, 30.5cm x 24.4cmSource

Memory

1 item
Memory type, slots and limit
Memory Channels:4DDR4 (Dual channel), Max Memory Size:128GB, 4 x DIMM, Max. 128GB, DDR4 5066(OC)/5000(OC)/4800(OC)/4600(OC)/4400(OC)/4266(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 Non-ECC, Un-buffered memory*" Dual Channel Memory Architecture Supports Intel® Extreme Memory Profile (XMP) OptiMem *Actual memory data rate depends on the CPU types and DRAM modules, for more information refer to www.asus.com for memory support list.Source

Expansion slots

1 item
Expansion slots and restrictions
Intel® Core™ Processors (14th & 13th & 12th Gen) 1 x PCIe 4.0 x16 slot Intel® B660 Chipset* 1 x PCIe 3.0 x16 slot (supports x4 mode) 2 x PCIe 3.0 x1 slots * Supports Intel® Optane Memory H Series on PCH-attached PCIe slotSource

Storage

1 item
Storage interfaces and restrictions
Intel® Core™ Processors (14th & 13th & 12th Gen) M.2_1 slot (Key M), type 2242/2260/2280 - Intel® 12th Gen processors support PCIe 4.0 x4 mode. Intel® B660 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 x2 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10. ** Intel® Rapid Storage Technology supports Intel® Optane Memory H Series on PCH attached M.2 slots.Source

USB & rear connections

2 items
USB ports and headers
Rear USB (Total 6 ports) 1 x USB 3.2 Gen 2x2 port (1 x USB Type-C®) 2 x USB 3.2 Gen 2 ports (2 x Type-A) 1 x USB 3.2 Gen 1 port (1 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 7 ports) 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 portsSource
Rear-panel ports
1 x USB 3.2 Gen 2x2 port (1 x USB Type-C®) 2 x USB 3.2 Gen 2 ports (2 x Type-A) 1 x USB 3.2 Gen 1 port (1 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x D-Sub port 1 x HDMI® port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacksSource

Networking

1 item
Network interfaces and requirements
M.2 slot only (Key E, CNVi & PCIe)* *Wi-Fi module is sold separately.Source

Audio

1 item
Audio interfaces
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 - Power pre-regulator reduces power input noise to ensure consistent performance - 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.Source

Power, cooling & lighting

1 item
Internal headers and connectors
Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin AIO Pump header 3 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 3 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 2 x AURA RGB headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x M.2 slot (Key E) 1 x S/PDIF Out header 1 x SPI TPM header (14-1pin) 1 x 20-3 pin System Panel header with Chassis intrude function 1 x Thunderbolt™ headerSource

BIOS, software & diagnostics

1 item
CPU support and BIOS requirements
Intel® Socket LGA1700 for Intel® Core™ 14th & 13th Gen Processors, Intel® Core™ 12thnGen, Pentium® Gold and Celeron® Processors* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to www.asus.com for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 128 Mb Flash ROM, UEFI AMI BIOS

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.

Source
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