Skip to main content

Asus Prime B550M-A WIFI II Desktop Motherboard - AMD B550 Chipset - Socket AM4 - Micro ATX

Part #: 1-2249250

Asus Prime B550M-A WIFI II Desktop Motherboard - AMD B550 Chipset - Socket AM4 - Micro ATX

Part #: 1-2249250 MFG Part #: PRIME B550M-A WIFI II UPC #: 195553309752
$119.99 $118.76
Save $1.23
OUT OF STOCK

0 Available

(as of Mar 30, 2026 2:12 AM) Refresh Inventory
FREE SHIPPING

Free shipping on most items when you spend $100

AUTHORIZED DEALER
AUTHORIZED DEALER
AUTHORIZED DEALER

AUTHORIZED DEALER

Protect your investment ()

About the Asus Prime B550M-A WIFI II

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

  • AMD AM4 Socket: Ready for Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
  • Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2+ utility
  • Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
  • Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware
PRIME

ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.

Tune It Your Way

Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work - maximizing your productivity.

All-around Energy Efficiency

With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.

Cool to the Core

Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

VRM Heatsink and Thermal Pads

A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.

Build on a Solid Foundation

Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.

Little Things Make a Big Difference

Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

Outstanding AudioCombined onboard features deliver elevated audio

Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.

Audio Shielding

Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate Layer for Left and Right Tracks

Ensures minimal crosstalk between audio paths.

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

  • AMD AM4 Socket: Ready for Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
  • Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2+ utility
  • Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
  • Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware
PRIME

ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.

Tune It Your Way

Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work - maximizing your productivity.

All-around Energy Efficiency

With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.

Cool to the Core

Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

VRM Heatsink and Thermal Pads

A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.

Build on a Solid Foundation

Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.

Little Things Make a Big Difference

Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

Outstanding AudioCombined onboard features deliver elevated audio

Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.

Audio Shielding

Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate Layer for Left and Right Tracks

Ensures minimal crosstalk between audio paths.

Technical Specifications of the Asus Prime B550M-A WIFI II

General Information


Manufacturer ASUS Computer International
Manufacturer Part Number PRIME B550M-A WIFI II
Manufacturer Website Address http://usa.asus.com
Brand Name Asus
Product Line Prime
Product Model B550M-A WIFI II
Product Name Prime B550M-A WIFI II Desktop Motherboard
Product Type Desktop Motherboard

Processor & Chipset


Chipset Manufacturer AMD
Chipset Model B550
Total Processor Supported 1
Processor Socket Socket AM4
Processor Supported Ryzen 5Ryzen 7 PRORyzen 7Ryzen 9 PRORyzen 3Ryzen 5 ProRyzen 9Ryzen 3 PRO

Memory


Number of Memory Slots 4
Memory Form Factor UDIMMDIMM
Maximum Memory 128 GB
Memory Technology DDR4 SDRAM
Memory Speed Supported 4333 MHz2800 MHz3466 MHz4000 MHz4400 MHz2667 MHz3333 MHz3733 MHz4600 MHz4866 MHz2400 MHz3200 MHz3600 MHz4466 MHz4266 MHz2133 MHz3000 MHz3866 MHz4133 MHz4800 MHz

I/O Controller


Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 0101

Video


Onboard Video CPU Dependent Video

Audio


Audio Channels 7.1

Network & Communication


Bluetooth Yes
Gigabit Ethernet Yes
Wireless LAN Yes
Wireless LAN Standard IEEE 802.11 a/b/g/n/ac/ax

I/O Expansions


Total Number of Expansion Slots 3
Total Number of PCI Express Slots 3
Number of PCI Express x1 Slots 2
Number of PCI Express x16 Slots 1

Interfaces/Ports


Total Number of USB Ports 6
Number of USB 3.2 Ports 6
VGA Yes
HDMI Yes
DVI Yes
Number of Network (RJ-45) Ports 1

Onboard Interfaces


Number of SATA Interfaces 4
Number of M.2 Interfaces 2
Total Number of Onboard USB Ports 6
Number of Onboard USB 2.0 Ports 4
Number of Onboard USB 3.2 Ports 2
Onboard S / PDIF Header Yes

Physical Characteristics


Form Factor Micro ATX
Width 9.6"
Depth 9.6"

Ratings and Reviews

Do you own the Asus Prime B550M-A WIFI II?
Be the first to write a review!
Displaying 1-10 of 70
Page size: