Product Specification

CPU

Chipset : AMD B550

CPU Socket : AM4

Back Panel I/O

USB

2 x USB 3.1 / USB 3.2 Gen 2 Type-A

4 x USB 3.1 / USB 3.2 Gen 1 Type-A

Thunderbolt : None

Display

1 x HDMI 2.1

1 x DVI-D

1 x VGA

Audio : 3 x 3.5 mm

Ethernet / Controller : 1 x Realtek RTL8111H Gigabit

PS/2 : 1 x PS/2

Wi-Fi Antenna : 2 x Connector

Memory

Memory Slots : 4 x 288-Pin

Memory Support : DDR4 2133, 2400, 2666, 2800, 3000, 3200, 3466, 3600, 3866, 4000, 4400 MHz

Maximum Capacity : 128 GB

Channel Architecture : Dual Channel

ECC Support : Non-ECC, ECC Unbuffered

Storage Expansion

SATA : 4 x SATA III

M.2

1 x M Key 2242, 2260, 2280, 22110 (PCIe 4.0 x4, SATA (Unspecified))

1 x M Key 2242, 2260, 2280 (PCIe 3.0 x4, SATA (Unspecified))

U.2 : None

RAID Support : RAID 0, 1, 10

Internal I/O

Expansion Slots

1 x PCIe 4.0 x16 (x16 mode)

2 x PCIe 3.0 x1

USB

1 x USB 3.1 / USB 3.2 Gen 1 Header (Supports 2 USB Type-A Port)

2 x USB 2.0 Header (Supports 4 USB Type-A Port)

Multi-GPU Support : None

Air Cooling

1 x 4-Pin CPU

2 x 4-Pin System

1 x 4-Pin Assistant

Power Connectors

1 x 24-Pin Mainboard

1 x 8-Pin ATX

Security : TPM Module

LED Header : 3 x RGB

Audio

1 x Speaker

1 x S/PDIF

Diagnostics : Clear CMOS

Legacy : 1 x Serial

BIOS

ROM : 256 Mb

Front Panel I/O

I/O Connection Headers : AAFP, USB 3.1 / USB 3.2 Gen 1

Audio

Audio Codec : Realtek ALC887 (7.1-Channel)

Wireless

Bluetooth : 5.1

Wi-Fi : Wi-Fi 6 (802.11ax) (MU-MIMO)

Software

Supported Operating Systems : Windows 10 (64-Bit)

Physical

Form Factor : Micro-ATX

Packaging Info

Package Weight : 2.53 lb

Box Dimensions (LxWxH) : 11.1 x 10.8 x 3.2"

ASUS Prime B550M-A WiFi – Micro-ATX Motherboard (AMD AM4, 3rd Gen Ryzen, PCIe 4.0, WiFi 6, ECC Memory Support, 1Gb LAN, HDMI 2.1 & D-Sub

(1106 Total Review)

The ASUS Prime B550M-A WiFi is a reliable and versatile Micro-ATX motherboard built to serve creators, gamers, and other PC enthusiasts. The ASUS Prime B550M-A WiFi is designed for 3rd Gen AMD Ryzen processors.

With 4 DDR4 DIMM slots, the ASUS Prime B550M-A WiFi supports up to 128GB of DDR4 memory, with dual-channel architecture, which ensures smooth performance and fast multitasking. Also, the ASUS Prime B550M-A WiFi is a Micro-ATX motherboard; even after that, it offers a rich mix of modern connectivity, which makes your computing experience better.

Product Features

AMD AM4 Socket and PCIe 4. 0: The perfect pairing for 3rd Gen AMD Ryzen CPUs.
1x PCIe 4. 0 x16 SafeSlot, WiFi 6 (802. 11ax).
VRM heatsink.
UEFI BIOS.
Aura Sync RGB.

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Out of Stock · Last Checked At: Oct 30, 2026

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