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ASUS

ASUS Prime B550M-A WiFi II AMD Micro ATX Motherboard with PCIe 4.0, WiFi 6, ECC Memory, HDMI 2.1, RGB Header

    • Based on 2,906 reviews
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Availability: In Stock.
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Arrives Tuesday, May 21
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Pattern: mATX


Style: PRIME B550M-A WIFI II


Features

  • AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs
  • Ultrafast Connectivity: 1x PCIe 4.0 x16 SafeSlot, WiFi 6 (802.11ax), 1Gb LAN, dual M.2 slots (NVMe SSD)one with PCIe 4.0 x4 connectivity, USB 3.2 Gen 2 Type-A , HDMI 2.1 (4K at 60HZ), D-Sub & DVI
  • Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2 utility
  • 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
  • Boosted Memory Performance: ASUS OptiMem proprietary trace layout allows memory kits to operate at higher frequencies with lower voltages to maximize system performance.

Description

Powered by 3rd Gen AMD® Ryzen™ processors, the ASUS Prime B550M-A WiFi II delivers next-generation speeds with PCIe 4.0, WiFi 6 and 1Gb LAN. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, the ASUS Prime B550M-A WiFi 6 provides mainstream PC users and DIY PC builders with a perfect all-around foundation via intuitive software and firmware features.

Brand: ASUS


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD 3rd Generation Ryzen


Chipset Type: AMD B550


Memory Clock Speed: 2133 MHz


Platform: Windows 10


Model Name: PRIME B550M-A WIFI II


Memory Storage Capacity: 128 GB


RAM: ‎DDR4


Memory Speed: ‎2133 MHz


Wireless Type: ‎802.11a/b/g/n/ac, 802.11ax


Number of USB 2.0 Ports: ‎11


Brand: ‎ASUS


Series: ‎PRIME B550M-A WIFI II


Item model number: ‎PRIME B550M-A WIFI II


Item Weight: ‎2.48 pounds


Product Dimensions: ‎10.5 x 2.8 x 10.8 inches


Item Dimensions LxWxH: ‎10.5 x 2.8 x 10.8 inches


Color: ‎BLACK


Manufacturer: ‎ASUS


Country of Origin: ‎China


Date First Available: ‎July 6, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great motherboard!
Pattern: mATX Style: PRIME B550M-A WIFI II
Review Image by Vance Vance
Review Image by Vance Vance
The ASUS Prime B550M-A WiFi II has truly impressed me, not just with its technical prowess but also with how enjoyable it is to build with. Setting it up was a breeze – from unboxing to the final boot-up, the process was smooth. ASUS's user-friendly BIOS interface played a significant role, making configuration straightforward even for someone not deeply versed in motherboard intricacies. Building my rig with this micro ATX motherboard was a delight. The compact form factor didn't compromise on features, and the PCIe 4.0 support ensures my system runs at peak performance. The inclusion of WiFi 6 and 1Gb LAN means I have versatile connectivity options, making it a future-proof choice. The ECC memory support, a thoughtful addition, provides an extra layer of reliability for memory-intensive tasks. It's a clear nod to users engaged in professional workloads where stability is paramount. Connectivity-wise, the HDMI 2.1 and D-Sub outputs supporting 4K at 60Hz deliver stunning visuals, enhancing my overall multimedia experience. The Addressable Gen 2 RGB Header and Aura Sync take the aesthetics to another level, allowing for personalized lighting that syncs seamlessly with the rest of my setup. As a builder, the ASUS Prime B550M-A WiFi II has become one of my top choices. It strikes a perfect balance between performance and user-friendly design, making it an absolute joy to work with. If you're looking for a micro ATX motherboard that combines technical excellence with an enjoyable building experience, this one's a winner. ... show more
Reviewed in the United States on November 29, 2023 by Vance Vance
    • Good value
Pattern: ATX Style: PRIME B550-PLUS
I paired this mobo with a 5600x, and since it came with an updated bios it rain the cpu without issue, though there is a more recent bios. I did, however, have issues getting it to work. It would turn on, but nothing would display on screen and the green boot light stayed on. Long story short, replacing the cmos battery seems to have done the trick. This issue has not returned since the new battery. Some of the plastic looks kind of cheap, but it's not a big deal and only noticeable when installing stuff. Otherwise it looks quite nice in the case. For anyone who doesn't like the "audio led", it can be turned off or set to static in the bios. Software wise, Armoury Crate sucks. I recommend going into bios and turning off the automatic install. AI Suite 3 is decent, though everything can be adjusted in the bios/uefi. If you need something to control rgbs, openrgb is a good option. Amd has more recent chipset drivers than what's available on Asus's site, so I recommend getting them from there. All in all, I'm pleased with this motherboard and it was a good price. Everything works and it has plenty of options, plus it's windows 11 ready, which is nice. ... show more
Reviewed in the United States on July 2, 2022 by Aaron Talbot
    • Bought used in "acceptable" condition, works after flashing bios.
Pattern: ATX Style: PRIME B650-PLUS
Bought this in Used - Acceptable for $118, box had everything in it, if anything it looked like someone opened the box pulled the motherboard out and put it back. It didn't run out of the box though, I think maybe the first owner tried to upgrade the bios because it wouldn't post. Luckily ASUS has EZ Flash 3 so you don't even need a CPU to flash the bios. I flashed to the latest bios and it ran just fine. I'm running a 7700X and RTX 4080 with 32GB DDR5 6000 CL32. If you feel you're capable of troubleshooting a MOBO I recommend buying used to save yourself some $. ... show more
Reviewed in the United States on December 12, 2023 by Luis
    • Great for a decent price
Pattern: mATX Style: PRIME B550M-A WIFI II
Works great. Took me a little while because I had to get the WiFi drivers installed before I could really go anywhere. 100% great motherboard for a first time build if your willing to figure out how to get stuff installed :)
Reviewed in the United States on February 11, 2024 by Julian Johnson
    • Looks awesome and performs great!
Pattern: ATX Style: PRIME B550-PLUS
Great MOBO for gaming as well as general computing! Looks awesome and is super stable. The BIOS UI is nice and is easy to use. The build quality is great! No complaints here after several months! Highly recommend!
Reviewed in the United States on March 18, 2024 by EightFiveDesignco.
    • Asus and legacy boards
Pattern: ATX Style: PRIME B550-PLUS
If you have any legacy disk controller boards they WILL work with this motherboard. I use SAS Adaptec SCSI boards and they work just fine with this board. Obviously, someone at Asus knows how to properly "tweak" this BIOS so it works with older boards. They will NOT work on MSI or or Asrock. So, if you have older controller boards then Asus is the right board for you. ... show more
Reviewed in the United States on March 2, 2024 by Frank

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