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Overview

Easily connect and control all of your PC components, by installing the ASUS Prime B550M-A Wi-Fi II Micro-ATX AM4 motherboard for AMD Ryzen 3000/4000/5000 series computers. Featuring a comprehensive cooling system that includes VRM heatsink, hybrid fans and more, this motherboard offers enhanced power and a boosted memory.

ASUS Prime B550M-A Wi-Fi II Micro-ATX AM4 Motherboard for AMD Ryzen 3000/4000/5000 Series CPUs

Brand: ASUS
Model: PRIMEB550M-A WIFI II
Web Code: 17724633
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For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

  • AMD AM4 socket and PCIe 4.0 offers the perfect combination for 3rd Gen AMD Ryzen CPUs
  • PCIe slots include one PCIe X1, one PCIe X4, and two PCIe X16, each of which are twice as fast as the previous generation
  • Wi-Fi 6 capability, paired with an ethernet port, offers exceptional connectivity
  • HDMI 2.1 supports integrated graphics
  • Additional ports include two USB 2.0, and seven USB 3.1/3.2 Gen 2
  • Comprehensive cooling system includes VRM heatsink, PCH heatsink, hybrid fan headers and the Fan Xpert 2 utility
  • ASUS OptiMem proprietary trace layout offers a boosted memory performance
  • All-around protection includes LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless steel back I/O
  • Enhanced power is provided by 8+1 DrMOS power stages, including top-grade alloy chokes and capacitors
  • Synchronizable Aura Sync RGB LED effects are compatible with a wide range of PC gear, while Addressable Gen 2 RGB headers offer greater customization
Motherboard Form Factor
Micro-ATX
Year of Original Release
2022
CPU Socket Type
AM4
Processors Supported
AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
Supported Processor Chipset Make
AMD
Chipset
AMD B550
Memory Channel Architecture
Dual Channel
Memory Supported
ECC Memory (ECC mode) Support Varies By CPU
Memory Slots
4
Maximum Memory Supported
128 GB
PCI Express X1 Slots
1
PCI Express X4 Slots
1
PCI Express X16 Slots
2
Ethernet Port
1
Wireless Standard Generation
Wi-Fi 6
USB 2.0 Ports
2
USB 3.1/3.2 Gen 2 Ports
7

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Information about the manufacturer’s availability guarantee can be found .