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The Asus Prime B550M-A WiFi II is a micro ATX AM4 motherboard for 3rd Gen and later AMD Ryzen chips. It pairs a PCIe 4.0 x16 slot and one PCIe 4.0 x4 M.2 slot with built-in WiFi 6, 1Gb LAN and HDMI 2.1 output for 4K at 60Hz. An 8+1 DrMOS power stage with VRM heatsink and Aura Sync RGB headers covers mainstream builds. Against pricier B550 boards it trades extra USB and premium audio for a simpler layout, and owners rate it a solid mid-range pick with occasional complaints about the older D-Sub/DVI outputs and limited fan headers.
In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners rate it around 4.2 out of 5, calling it a dependable, easy-to-build micro ATX board with working WiFi 6 and clean BIOS. Complaints center on the second M.2 slot's slower speed and the sparse fan and USB headers.
The ASUS Prime B550M-A WiFi II is a Micro ATX motherboard with an AMD AM4 socket for 3rd Gen Ryzen CPUs. It supports PCIe 4.0 and ECC memory.
For power, it has 8+1 DrMOS power stages with alloy chokes and durable capacitors. A VRM heatsink, a PCH heatsink, hybrid fan headers and the Fan Xpert 2 utility handle cooling. The ASUS OptiMem trace layout lets memory kits run at higher frequencies with lower voltages.
5X Protection III includes LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and a stainless-steel back I/O. Aura Sync lets LED effects sync across compatible PC gear. The board has an RGB LED header and an Addressable Gen 2 RGB header.
