Asus PRIME B550M-A WIFI II AMD B550 DDR4 Micro ATX AM4 Motherboard - 90MB19X0-M0EAY0

ASUS PRIME B550M-A WIFI II AMD B550 Socket AM4 micro ATX

Asus PRIME B550M-A WIFI II AMD B550 DDR4 Micro ATX AM4 Motherboard - 90MB19X0-M0EAY0

Overall Rating: 4.4 / 5 (average from multiple review sources, as of 12 Dec 2025)
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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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ASUS PRIME B550M-A WIFI II AMD Socket AM4 AMD Ryzen 3000 Series AMD Ryzen 5000 Series Socket AM4 DDR4-SDRAM 128 GB

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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 4 DDR4, VGA, DVI, HDMI, Wi-Fi, PCIe4, 2x M.2

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Product Information

Weight & dimensions

Width 244 mm
Height 67 mm
Depth 244 mm

Other features

Packaging content 2 x SATA 6Gb/s cables 1 x ASUS Wi-Fi moving antennas 1 x I/O Shield 1 x M.2 SSD screw package 1 x Support DVD 1 x User manual
Weight 845 g

Packaging content

Drivers included Yes
Cables included SATA

Logistics data

Harmonized System (HS) code 84733020

Expansion slots

Number of M.2 (M) slots 2
PCI Express x16 (Gen 3.x) slots 1
PCI Express x16 (Gen 4.x) slots 1
PCI Express x1 (Gen 3.x) slots 2

Features

Windows operating systems supported Windows 10 x64, Windows 11 x64
Motherboard chipset family AMD
Product colour Multicolour
Motherboard chipset AMD B550
Motherboard form factor micro ATX
Audio output channels 7.1 channels
Component for PC

Network

Ethernet interface type Gigabit Ethernet
Ethernet LAN Yes
Bluetooth version 5.2
Bluetooth Yes
Wi-Fi standards 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
Top Wi-Fi standard Wi-Fi 6 (802.11ax)
Wi-Fi Yes
Wake-on-LAN ready Yes
LAN controller Realtek RTL8111H

Rear panel I/O ports

USB connector type USB Type-A
DVI-D ports quantity 1
HDMI version 2.1
HDMI ports quantity 1
VGA (D-Sub) ports quantity 1
PS/2 ports quantity 1
Ethernet LAN (RJ-45) ports 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 4
WiFi-AP antenna jack 1
Microphone in Yes
Headphone outputs 1

Internal I/O

RGB LED pin header Yes
Number of COM connectors 1
TPM connector Yes
12V power connector Yes
S/PDIF out connector Yes
Number of SATA III connectors 4
USB 3.2 Gen 1 (3.1 Gen 1) connectors 1
USB 2.0 connectors 2
EPS power connector (8-pin) Yes
Number of chassis fan connectors 2
CPU fan connector Yes
Number of EATX power connectors 1
ATX Power connector (24-pin) Yes
Front panel audio connector Yes

Graphics

On-board graphics card No
Parallel processing technology support Not supported

Storage controllers

RAID levels 0, 1, 10
RAID support Yes
Number of storage drives supported 6
Supported storage drive interfaces M.2, PCI Express 3.0, PCI Express 4.0, SATA III
Supported storage drive types HDD & SSD

Memory

Memory slots type DIMM
Number of memory slots 4
Supported memory types DDR4-SDRAM
Unbuffered memory Yes
Maximum internal memory 128 GB
Supported memory clock speeds 2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4466,4600,4800,4866 MHz
ECC сompatibility ECC
Memory channels Dual-channel

Processor

Supported processor sockets Socket AM4
Compatible processor series AMD Ryzen 3000 Series, AMD Ryzen 5000 Series
Processor socket Socket AM4
Processor manufacturer AMD

BIOS

BIOS type UEFI AMI
Clear CMOS jumper Yes
BIOS memory size 256 Mbit

Product information

At a glance

  • Supports latest AMD processors for optimal speed.
  • Compact design with customizable RGB lighting.
  • User-friendly setup and advanced connectivity options.

Note: This text was created with the help of AI.

Unlock Your Build Potential with the ASUS Prime B550M-A WiFi II

The ASUS Prime B550M-A WiFi II motherboard is perfect for anyone from a casual gamer to a more advanced PC builder who values reliability and performance. Whether you're aiming to create a robust gaming rig or a versatile workstation, this motherboard offers the ideal foundation for your system. With features that cater to both beginners and seasoned enthusiasts alike, it provides an excellent platform for building a modern setup. You can explore various Motherboards to find the perfect match for your needs.

Innovative Features for Enhanced Performance

This motherboard is packed with must-have features that elevate your PC experience. The ASUS Prime B550M-A WiFi II boasts support for the latest AMD Ryzen processors, ensuring exceptional speed and responsiveness for any task. With dual M.2 slots for fast NVMe SSDs, you can enjoy rapid data transfer speeds, while PCIe 4.0 support unlocks future-proofing for high-end graphics cards. Additionally, the integrated WiFi 6 technology offers enhanced connectivity, resulting in smoother online experiences whether you’re gaming, streaming, or working.

Stylish Design Meets Practical Functionality

Not only does the ASUS Prime B550M-A WiFi II deliver powerful performance, but it also features a sleek and sophisticated design. Its compact Micro-ATX form factor makes it perfectly suited for smaller builds without compromising on capabilities. The black and silver color scheme provides a modern aesthetic that will complement any setup. Plus, with customizable RGB lighting options, you can personalize your rig to match your style. The motherboard also includes robust cooling designs with multiple fan headers, ensuring optimal thermal performance during intense workloads.

Easy Installation and User-Friendly Features

Setting up the ASUS Prime B550M-A WiFi II is a breeze, thanks to its intuitive layout and user-friendly features. With ample connectivity options, including USB 3.2 Gen 2 ports and HDMI for integrated graphics, you can easily attach peripherals without hassle. The user-friendly BIOS interface makes system tweaks and optimizations straightforward, allowing you to adjust settings with confidence. Additionally, ASUS’ AI Suite software provides real-time monitoring of your system's performance, making it easier than ever to maintain an efficient and powerful build. Don't miss out on the chance to elevate your PC game with this fantastic motherboard!

Note: This text was created with the help of AI.

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Asus PRIME B550M-A WIFI II AMD B550 DDR4 Micro ATX AM4 Motherboard - 90MB19X0-M0EAY0

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AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB lighting support
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