MOTHERBOARDS · YOUR NEXT FACE-OFF

ASUS PRIME B550M-A vs ASUS TUF GAMING B550M-E WIFI

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

Compared products

YOUR FIRST CHOICE

ASUS PRIME B550M-A

UK manufacturer specification · PRIME B550M-A

Full product profile Official image

Exact model & source notes

PRIME B550M-A 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

ChipsetAMD B550AMD B550 Chipset

The first of 7 verified differences, in the order listed below. Not a rating.

See the 7 verified differences

THE CONTENDER

ASUS TUF GAMING B550M-E WIFI

UK manufacturer specification · TUF GAMING B550M-E WIFI

Full product profile Official image

Exact model & source notes

TUF GAMING B550M-E WIFI 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

PRIME B550M-A UK & US retailers

UK & US price history: no verified listing yet

TUF GAMING B550M-E WIFI UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

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 PRIME B550M-AAMD B550

Manufacturer specification

Source 1

ASUS TUF GAMING B550M-E WIFIAMD B550 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 ↓

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

Chipset

In Visual facts

ASUS PRIME B550M-AAMD B550

ASUS TUF GAMING B550M-E WIFIAMD B550 Chipset

Sources

ASUS PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — 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 PRIME B550M-AAMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory * AMD Ryzen™ 4000 G-Series Desktop Processors 4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory * Dual Channel Memory Architecture ECC Memory (ECC mode) support varies by CPU. * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).

ASUS TUF GAMING B550M-E WIFI4 x DIMM, Max. 128GB, DDR4 4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 MHz, Un-buffered Memory* Dual Channel Memory Architecture * ECC memory (ECC mode) support varies by CPU. * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.

Sources

ASUS PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Check the exact configuration and source conditions for your use.

Storage interfaces and restrictions

In Visual facts

ASUS PRIME B550M-ATotal supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors: 1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support AMD Ryzen™ 4000 G-Series Desktop Processors: 1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support AMD B550 Chipset: 1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support 4 x SATA 6Gb/s port(s), Support Raid 0, 1, 10

ASUS TUF GAMING B550M-E WIFITotal supports 2 x M.2 slots and 4 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes) AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes) AMD B550 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes) 4 x SATA 6Gb/s ports Support RAID 0, 1, 10

Sources

ASUS PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Check the exact configuration and source conditions for your use.

Network interfaces and requirements

In Visual facts

ASUS PRIME B550M-ARealtek RTL8111H 1Gb Ethernet

ASUS TUF GAMING B550M-E WIFI1 x Realtek 1Gb Ethernet; Intel® Wi-Fi 6 AX200 2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) support 1024QAM/OFDMA/MU-MIMO Supports up to 2.4Gbps max data rate Supports 2.4/5GHz Dual-Band Supports channel bandwidth: HT20/HT40/HT80/HT160 Supports PCIe interface Bluetooth v5.1* * Bluetooth v5.1 function will be ready in Windows® 10 build 19041 or later.

Sources

ASUS PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Check the exact configuration and source conditions for your use.

Audio interfaces

In Visual facts

ASUS PRIME B550M-ARealtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback Audio Feature: - LED-illuminated design - Audio Shielding - Dedicated audio PCB layers - Premium Japanese audio capacitors * Choose the chassis with HD audio module in front panel to support 8-channel audio output.

ASUS TUF GAMING B550M-E WIFIRealtek ALC887/897 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 Japanese 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 PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Check the exact configuration and source conditions for your use.

Expansion slots and restrictions

In Visual facts

ASUS PRIME B550M-AAMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 (x16 mode) AMD Ryzen™ 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 (x16 mode) AMD B550 Chipset 2 x PCIe 3.0 x1

ASUS TUF GAMING B550M-E WIFIAMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 slot (supports x16 mode) AMD B550 Chipset 2 x PCIe 3.0 x1 slots

Sources

ASUS PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Check the exact configuration and source conditions for your use.

Show 1 more verified difference

Listed operating systems

In Visual facts

ASUS PRIME B550M-AWindows® 10 64-bit

ASUS TUF GAMING B550M-E WIFIWindows® 11 64-bit, Windows® 10 64-bit

Sources

ASUS PRIME B550M-A

Manufacturer specification

ASUS PRIME B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Check the exact configuration and source conditions for your use.

Configuration & compatibility details (1)

CPU support and BIOS requirements

ASUS PRIME B550M-AAMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors * * Refer to www.asus.com for CPU support list BIOS: 256 Mb Flash ROM, UEFI AMI BIOS

ASUS TUF GAMING B550M-E WIFIAMD Socket AM4 for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors* * Refer to www.asus.com for CPU support list. BIOS: 256 Mb Flash ROM, UEFI AMI BIOS

Sources

ASUS PRIME B550M-A

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 B550M-A — official UK technical specifications

ASUS TUF GAMING B550M-E WIFI

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 TUF GAMING B550M-E WIFI — official UK technical specifications

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

Missing or non-comparable evidence (3)

Internal headers and connectors

ASUS PRIME B550M-ANot verified

ASUS TUF GAMING B550M-E WIFIFan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 2 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 2 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 2 x AURA 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 S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel header

Sources

ASUS PRIME B550M-A

No source recorded for this side.

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rear-panel ports

ASUS PRIME B550M-ANot verified

ASUS TUF GAMING B550M-E WIFI2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 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 ASUS Wi-Fi Module 1 x Realtek 1Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button 1 x PS/2 Keyboard/Mouse combo port

Sources

ASUS PRIME B550M-A

No source recorded for this side.

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

USB ports and headers

ASUS PRIME B550M-ANot verified

ASUS TUF GAMING B550M-E WIFIRear USB (Total 6 ports) 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 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 ports

Sources

ASUS PRIME B550M-A

No source recorded for this side.

ASUS TUF GAMING B550M-E WIFI

Manufacturer specification

ASUS TUF GAMING B550M-E WIFI — official UK technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

2 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

ASUS PRIME B550M-A

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 TUF GAMING B550M-E WIFI

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 PRIME B550M-A and ASUS TUF GAMING B550M-E WIFI
Specification	ASUS PRIME B550M-A	ASUS TUF GAMING B550M-E WIFI

CPU socket Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	AM4	AM4
ChipsetDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	AMD B550	AMD B550 Chipset
Form factor and dimensions Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )	mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )
CPU support and BIOS requirementsDifferent Sources ASUS PRIME B550M-A 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 B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI 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 TUF GAMING B550M-E WIFI — official UK technical specifications	*AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors * Refer to www.asus.com for CPU support list BIOS: 256 Mb Flash ROM, UEFI AMI BIOS**	*AMD Socket AM4 for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors * Refer to www.asus.com for CPU support list. BIOS: 256 Mb Flash ROM, UEFI AMI BIOS**
Listed operating systemsDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Windows® 10 64-bit	Windows® 11 64-bit, Windows® 10 64-bit

Memory type, slots and limitDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory * AMD Ryzen™ 4000 G-Series Desktop Processors 4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory * Dual Channel Memory Architecture ECC Memory (ECC mode) support varies by CPU. * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).	4 x DIMM, Max. 128GB, DDR4 4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 MHz, Un-buffered Memory* Dual Channel Memory Architecture * ECC memory (ECC mode) support varies by CPU. * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.

Storage interfaces and restrictionsDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Total supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors: 1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support AMD Ryzen™ 4000 G-Series Desktop Processors: 1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support AMD B550 Chipset: 1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support 4 x SATA 6Gb/s port(s), Support Raid 0, 1, 10	Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes) AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes) AMD B550 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes) 4 x SATA 6Gb/s ports Support RAID 0, 1, 10

Expansion slots and restrictionsDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 (x16 mode) AMD Ryzen™ 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 (x16 mode) AMD B550 Chipset 2 x PCIe 3.0 x1	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 slot (supports x16 mode) AMD B550 Chipset 2 x PCIe 3.0 x1 slots

Audio interfacesDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback Audio Feature: - LED-illuminated design - Audio Shielding - Dedicated audio PCB layers - Premium Japanese audio capacitors * Choose the chassis with HD audio module in front panel to support 8-channel audio output.	Realtek ALC887/897 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 Japanese 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.
USB ports and headers Sources ASUS PRIME B550M-A No source recorded. ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Not provided	Rear USB (Total 6 ports) 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 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 ports
Rear-panel ports Sources ASUS PRIME B550M-A No source recorded. ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Not provided	2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 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 ASUS Wi-Fi Module 1 x Realtek 1Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button 1 x PS/2 Keyboard/Mouse combo port

Network interfaces and requirementsDifferent Sources ASUS PRIME B550M-A Manufacturer specification ASUS PRIME B550M-A — official UK technical specifications ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Realtek RTL8111H 1Gb Ethernet	1 x Realtek 1Gb Ethernet; Intel® Wi-Fi 6 AX200 2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) support 1024QAM/OFDMA/MU-MIMO Supports up to 2.4Gbps max data rate Supports 2.4/5GHz Dual-Band Supports channel bandwidth: HT20/HT40/HT80/HT160 Supports PCIe interface Bluetooth v5.1* * Bluetooth v5.1 function will be ready in Windows® 10 build 19041 or later.

Internal headers and connectors Sources ASUS PRIME B550M-A No source recorded. ASUS TUF GAMING B550M-E WIFI Manufacturer specification ASUS TUF GAMING B550M-E WIFI — official UK technical specifications	Not provided	Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 2 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 2 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 2 x AURA 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 S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel header

First product manufacturer source Second product manufacturer source

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ASUS PRIME B550M-A WIFI II

CPU socket: AM4
Chipset: AMD B550 Chipset
Form factor and dimensions: mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

Prices & product profile

ASUS PRIME B550M-K

CPU socket: AM4
Chipset: AMD B550 Chipset
Form factor and dimensions: mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

Prices & product profile

ASUS PRIME B550M-A WIFI II-CSM

CPU socket: AM4
Chipset: AMD B550 Chipset
Form factor and dimensions: mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

Prices & product profile

ASUS PRIME B550M-K/CSM

CPU socket: AM4
Chipset: AMD B550 Chipset
Form factor and dimensions: mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )

Prices & product profile

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.