ASUS Prime B550M-A WiFi II AMD Micro ATX DDR4 Motherboard with PCIe 4.0, WiFi 6, ECC Memory, HDMI 2.1, RGB Header

$109.99

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Size: B550M-A | M.2x2 | D4 | WiFi6

Price checked Oct 19, 2026, 2:45 PM PDT

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Product details

ASIN: B0B5M97W1T
GTIN / UPC: 195553309752
Brand: ASUS
Category: Computers & accessories
Availability: In stock at last check
Last checked: today

Specifications

Size: B550M-A | M.2x2 | D4 | WiFi6
Color: BLACK
Model: PRIME B550M-A WIFI II
Part number: PRIME B550M-A WIFI II
Manufacturer: ASUS
Dimensions: 10.8 × 10.5 × 2.8 in
Weight: 2.55 lb

About this item

AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs
Ultrafast Connectivity: 1x PCIe 4.0 x16 SafeSlot, WiFi 6 (802.11ax), 1Gb LAN, dual M.2 slots (NVMe SSD)—one with PCIe 4.0 x4 connectivity, USB 3.2 Gen 2 Type-A , HDMI 2.1 (4K at 60HZ), D-Sub & DVI
Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2 utility
5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
Boosted Memory Performance: ASUS OptiMem proprietary trace layout allows memory kits to operate at higher frequencies with lower voltages to maximize system performance.

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ASUS B760M-AYW WiFi D4 II vs Prime B550M-A WiFi II: Which Platform Fits Your Build?
Choose by the processor you plan to use first: the B760M-AYW WIFI D4 II lists Intel LGA1700 processors, while the PRIME B550M-A WIFI II lists AMD AM4 Ryzen families.
ASUS TUF B550-PLUS WIFI II vs PRIME B550M-A WIFI II: Which Fits Your Build?
The TUF suits an ATX case and a build that benefits from its listed additional expansion positions or rear Type-C/2.5Gb LAN. The PRIME is the smaller mATX option and adds D-Sub and DVI-D display outputs.
Which B550 board fits your case, cards, and connections?
Choose by the exact case and parts list. ROG is ATX with more listed card positions, rear Type-C and six SATA ports, but its manual documents slot-mode interaction and M.2_2 disables two SATA ports.

ASUS Prime B550M-A WiFi II AMD Micro ATX DDR4 Motherboard with PCIe 4.0, WiFi 6, ECC Memory, HDMI 2.1, RGB Header

Product details

Specifications

About this item

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