ASUS AMD B550 Socket AM4 Compatible Motherboard ROG STRIX B550-A GAMING [ATX]

AMD AM4 socket and PCIe 4.0: the perfect pairing for 3rd Gen AMD Ryzen CPUs

Processor SocketSockel AM4Memory Clock Speed2400 MHzMemory Storage Capacity128 GBGraphics Card InterfacePCI ExpressMemory Slots Available2Total Usb Ports11

About this item

  • AMD AM4 socket and PCIe 4.0: the perfect pairing for 3rd Gen AMD Ryzen CPUs
  • High-performance gaming networking: 2.5 Gb LAN with ASUS LANGuard
  • Best gaming connectivity: supports HDMI 2.1(4K@60HZ) and DisplayPort 1.2 output, featuring dual M.2 slots (NVMe SSD)
  • AI noise cancelling mic technology: High fidelity audio from a SupremeFX S1220A codec with DTS Sound Unbound and Sonic Studio III
Category: PC PartsMotherboardsRanked #99 of 616 in PC Parts
8.6Our score
Our verdict

AMD AM4 socket and PCIe 4.0: the perfect pairing for 3rd Gen AMD Ryzen CPUs

Ranked #99 in PC Parts · 4 things we like

Quick answer The ASUS AMD B550 Socket AM4 Compatible Motherboard scores 8.6/10 with us. Amazon owners rate it 4.6 out of 5 across 3,303 reviews, above the 4.3 average of the 147 motherboards we track. It was listed at $198.41 on Amazon when we last checked in September 2026. Key facts: processor socket Sockel AM4, memory clock speed 2400 MHz, memory storage capacity 128 GB.

AMD AM4 socket and PCIe 4.0: the perfect pairing for 3rd Gen AMD Ryzen CPUs High-performance gaming networking: 2.5 Gb LAN with ASUS LANGuard Best gaming connectivity: supports HDMI 2.1(4K@60HZ) and DisplayPort 1.2 output, featuring dual M.2 slots (NVMe SSD) AI noise cancelling mic technology: High fidelity audio from a SupremeFX S1220A codec with DTS Sound Unbound and Sonic Studio III DIY-friendly design: includes pre-mounted I/O shield, BIOS FlashBack, Q-LEDs and SafeSlot Total Usb Ports : 11

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Product information

23 specifications
Processor SocketSockel AM4
Compatible DevicesPersonal Computer
RAM Memory TechnologyDDR4
Compatible ProcessorsAMD Ryzen 3000 series
Chipset TypeAMD B550
Memory Clock Speed2400 MHz
PlatformWindows
CPU ModelRyzen 3
Memory Storage Capacity128 GB
Main Power Connector Type24-Pin
Graphics Card InterfacePCI Express
Memory Slots Available2
Number of Ports11
Total SATA Ports2
USB 2.04
Total Usb Ports11
Number of Ethernet Ports1
Total Number of HDMI Ports1
Total PCIe Ports1
BrandASUS
Model Name90MB15J0-M0EAY0
Model NumberROG STRIX B550-A GAMING
Mfr Part Number90MB15J0-M0EAY0

Pros & cons

What we like
  • AMD AM4 socket and PCIe 4.0: the perfect pairing for 3rd Gen AMD Ryzen CPUs
  • High-performance gaming networking: 2.5 Gb LAN with ASUS LANGuard
  • Best gaming connectivity: supports HDMI 2.1(4K@60HZ) and DisplayPort 1.2 output, featuring dual M.2 slots (NVMe SSD)
  • AI noise cancelling mic technology: High fidelity audio from a SupremeFX S1220A codec with DTS Sound Unbound and Sonic Studio III
What could be better

    ASUS AMD B550 Socket AM4 Compatible Motherboard: questions & answers

    Is the ASUS AMD B550 Socket AM4 Compatible Motherboard worth buying?

    Yes, it is one of the stronger picks in its group. We score the ASUS AMD B550 Socket AM4 Compatible Motherboard 8.6 out of 10. Amazon owners rate it 4.6 out of 5 across 3,303 reviews, above the 4.3 average of the 147 motherboards we track.

    How much does the ASUS AMD B550 Socket AM4 Compatible Motherboard cost?

    It was listed at $198.41 on Amazon when we last checked in September 2026. That is close to the $183.99 median for motherboards in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.

    What options does the ASUS AMD B550 Socket AM4 Compatible Motherboard come in?

    Amazon lists 2 options. Size: M.2x2|D4|WiFi6, M.2x4|D4|WiFi6E. Pick an option on this page and the button opens exactly that model.

    What are the key specs of the ASUS AMD B550 Socket AM4 Compatible Motherboard?

    Processor Socket: Sockel AM4; Memory Clock Speed: 2400 MHz; Memory Storage Capacity: 128 GB; Graphics Card Interface: PCI Express; Memory Slots Available: 2; Total Usb Ports: 11. All 23 specifications are in the product information table on this page.

    What are good alternatives to the ASUS AMD B550 Socket AM4 Compatible Motherboard?

    Similar, well-rated motherboards in our catalog: ASUS TUF Gaming B550M-PLUS (9.4/10, 4.7 stars from 2,725 owners); ASUS ROG Crosshair VIII Dark Hero AMD AM4 X570S (9.2/10, 4.6 stars from 962 owners); ASUS ROG Strix B650-A Gaming WiFi AMD B650 AM5 (9.0/10, 4.5 stars from 1,240 owners).

    Customer reviews

    All reviews on Amazon
    4.63,303 global ratings
    5 star90%
    4 star10%
    3 star0%
    2 star0%
    1 star0%

    Breakdown from the 10 most helpful reviews we imported.

    V
    VladimireTod
    Verified purchaseSeptember 9, 2026
    Great board love it.

    Good board. The WiFi card finally died on me overall Ive put it through a lot so I don’t blame it. Time for a upgrade anyways lol

    Z
    Zr0Regrets
    Verified purchaseSeptember 30, 2024
    Very well-rounded motherboard

    This board replaced a dying X470 Asus Crosshair VII Hero motherboard. I would have liked to buy an X570 chipset board, but they are out of stock everywhere, overpriced, or used and as a personal rule a motherboard is the only part of a build I won't purchase used.With a 5950x the board out of the box with PBO enabled ran TDC-156, EDC-190, PPT-230. The VRMs were warm but not out of spec or concerning so this board can handle any AM4 CPU you throw at it. It can't match the raw power output of my Hero VII board but unless you have the ultimate golden sample 5950x with a custom loop you should be

    B
    Brandon Vang
    Verified purchaseApril 21, 2026
    Beautiful and Affordable Motherboard!

    Love Love Love Asus Motherboards. I upgraded from a B450-F Gaming to the B550-F and the quality and ease of use are all still there. I switched because of the ARGB header that is included at the bottom of the board. It was super easy to put together, especially with the use of ChatGPT and it is a very forgiving board (throwing it around and sliding around the case). It is also such a good deal for this board, It makes sense its the Amazon Best Seller. Just be careful when you're swapping MOBO's and make sure to download it's BIOS onto a thumb-drive so you can update the bios via usb before you

    D
    doug
    Verified purchaseApril 10, 2026
    Oh, when it posted the first time booting up, that is what we want, lol.

    Well, it came on time but the packaging was really skimpy, just one piece of a thick brown paper that was laid on topof the motherboard box. Didn't even cover it completely. There was no protection on the bottom below the motherboard.Other then that the only other thing was it came without any motherboard screws, I had to rob a spare motherboard and a case. Good thing I kept all the unused stuff.The ROG board went in without a hitch, and posted first try, I was also doing a clean install of windows 11 iot ltsc.Everything worked, and the boot time, being a fresh install was super fast. My memor

    J
    J.D. S
    Verified purchaseJanuary 28, 2024
    Excellent motherboard with great features

    This is a really nice motherboard and was an upgrade over my older & much cheaper B450 that I, by a tragic mistake, dropped (literally) and accidentally broke. Visually, this ASUS motherboard I’ve replaced it with is stunning, much nicer than my last motherboard with larger & better looking heatsinks.For clarification, I bought the WiFi II version of this motherboard. Software-wise, well, I couldn’t get the WiFi or Bluetooth to work right away, but I found the required drivers included on a DVD. After inserting the DVD, there’s clearly marked drivers for the WiFi & Bluetooth. Unfortunately for

    T
    Tommy
    Verified purchaseMay 24, 2023
    Perfect if you want to OC but with some cons.

    I've used it about 3 weeks now for reference. The main components in the build are a 5800x3d CPU, MSI RX 6950 XT GAMING X TRIO GPU, 2x16gb Corsair Vengeance 3600 c18 memory, and just because I also mention a small software/bios default config that does increase CPU temps my CPU cooler is the deepcool lt720 (that I'm using as a top exhaust since it is pretty overkill for a 5800x3d) and the case is the dynamic evo with 6 ml120 case fans for intake and one for exhaust on the back so the case airflow isn't the issue.Positives:-Loved the bios design and how its organized. best ive used so far. smal

    A
    AllThingsTech
    Verified purchaseOctober 13, 2023
    Beast of a B550 board

    I was recently mistaken SOMEHOW (stupid on my part) about the RZ608 Wi-Fi 6e support. I must have been using Channel 100, which is in the range the RZ608 doesn't support. Most people don't use that range. Many routers don't support it, either.I got this motherboard in May 2023. Figured I'd throw a final update review out about it. Short and sweet.I killed an Asus B450-F Gaming Wi-Fi with my 5900x and PBO settings that were too much for that board's VRM. So, I have a CPU that can draw enough power to stress a board's VRM setup.From May of 2023 to today (Jan 2026), I've had my PC running 24/7. I

    K
    Kai
    Verified purchaseAugust 25, 2026
    Great

    No issues perfect am4 motherboard, boot up is quick and reliable

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.