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ASUS

ASUS Prime B550M-A/CSM AMD AM4 (3rd Gen Ryzen™) microATX Commercial Motherboard (PCIe 4.0, ECC Memory, 1Gb LAN, HDMI 2.1/D-Sub, 4K@60HZ, TPM, ASUS Control Center Express)

    • Based on 6,069 reviews
Condition: New
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$109.99 Why this price?

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As low as $18.33 / mo
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Apr 17 – Apr 21
Order within 21 hours and 28 minutes
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Style: mATX


Size: PRIME B550M-A/CSM


Features

  • AMD AM4 Socket and PCIe 4. 0: The perfect pairing for 3rd Gen AMD Ryzen CPUs. Operating System-Windows 10 64-bit
  • Fast Connectivity: 1Gb LAN, USB 3. 2 Gen 2 Type-C & Type-A ports, a front panel USB 3. 2 Gen 1 connector, plus HDMI 2. 1, D-Sub, and DVI display outputs
  • First PCIe 4. 0 CSM motherboard: ASUS Corporate Stable Model with up to 36-month supply, EOL notice, and ECN control
  • ASUS Control Center Express(ACCE) to make IT endpoint management simpler
  • 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O

Description

Powered by AMD 3rd Gen Ryzen processors, the ASUS Prime B550M-A/CSM commercial motherboard provides enhanced enterprise level features, including comprehensive system protection, 24/7 stability & reliability, an improved management suite with ASUS Control Center Express, ASUS Corporate Stable Model complimentary advance replacement, and a long product life cycle for reliable sourcing and support. Free 3-months Adobe Creative Cloud Subscription: Receive complimentary access with the purchase of this product (offer valid from 9/15/2021 to 9/15/2022) visit adobe-creative-cloud/ to claim.

Brand: ASUS


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD 3rd Generation Ryzen


Chipset Type: AMD AM4


Memory Clock Speed: 4400 MHz


Platform: Windows 10


Model Name: PRIME B550M-A/CSM


CPU Model: Others


Processor: ‎others


RAM: ‎DDR4


Memory Speed: ‎4400 MHz


Number of USB 2.0 Ports: ‎4


Brand: ‎ASUS


Series: ‎PRIME B550M-A/CSM


Item model number: ‎PRIME B550M-A/CSM


Item Weight: ‎1.31 pounds


Product Dimensions: ‎10.35 x 2.03 x 10.63 inches


Item Dimensions LxWxH: ‎10.35 x 2.03 x 10.63 inches


Manufacturer: ‎ASUS


Country of Origin: ‎China


Date First Available: ‎June 16, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 17 – Apr 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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • works with AMD Ryzen 5 5500 6-Core perfectly
Style: ATX Size: PRIME B550-PLUS
I am a builder who's is building this as a gift so it has to be perfect he lives 1k miles away. I put the AMD Ryzen 5 5500 6-Core its more than enough for him and this board if upgradable down the road.using a sabrent nvm.2 4.0 so boot time is fast. in windows 11 I have no errors at all, all install went perfectly. for a simple build that is stable for non overclocking buy it that said you can play most basic games no problem. also I did flash the bios to the newest BIOS 3611. (Good Luck) ... show more
Reviewed in the United States on December 7, 2024 by Cliff
    • Great value and super stable!
Style: mATX Size: Prime B450M-A II
Everything was straightforward with this motherboard, easy to navigate BIOS, and very stable with my Ryzen 5 2600. I've got a mild overclock and it holds it's own against some of the newer gear that I have! Definitely a great base for a beginner looking to dip their toes into PC building and gaming!
Reviewed in the United States on December 4, 2024 by TheCheese
    • Very nice motherboard
Style: mATX Size: PRIME B550M-A AC
Built an AMD 5 5600G with NVME drive, and 16 gigs of memory. Used the old case, did not have to update the BIOS, and everything worked well. We used an old existing case. The build is very fast and replaeed a old I-5 processor from 2015.
Reviewed in the United States on December 11, 2024 by SueAsNew
    • Good value motherboard
Style: mATX Size: Prime B450M-A II
Overall this motherboard works pretty well and I have no serious complaints. You do lose 2 of the SATA ports if you choose to use the M2 slot, which I don't like, but I've seen several other boards that have this limitation so I'm sure its some type of chipset limitation. It would have been nice if they could have shifted the x16 slot over one slot so that a 2 slot graphics card doesn't cover one of the PCI-E x1 slots, but I just used a PCI-E extender to move the card from that slot to elsewhere. Also: not sure if this is more an issue with the boardboard or the case I used, but I had to disconnect the USB 3.0 front panel header for cabling purposes, and the fit was so tight between the plastic guide and the cable plug that the whole guide came off with it when I pulled it off. I had to pry them back apart with a screwdriver and then carefully slip the guide back over the pins. No damager and everything works fine, but that was a bit scary. ... show more
Reviewed in the United States on October 9, 2024 by GNINSC
    • Totally worth the money
Style: mATX Size: Prime B450M-A II
Review Image by Tristan Tristan
Has ample io and very detailed instructions including how to use bios flashback just in case you have a processor the current bios doesn't support. Doesn't come on latest bios version would recommend you update it when you get it all put together and integrated for more security. Ample compatibility for parts. Make sure all the headers you do use are securely connected as the usb3.0 will not work if you don't push in the connector all the way ... show more
Reviewed in the United States on August 23, 2024 by Tristan Tristan
    • Nice
Style: mATX Size: Prime B450M-A II
Nice and cheap and it comes with usb bios flashback
Reviewed in the United States on December 27, 2024 by Jason
    • My next Nasa setup
Style: mATX Size: Prime B450M-A II
The ASUS Prime B450M-A II Motherboard is like the MVP of budget builds – solid, reliable, and not here to break the bank. Compatible with Ryzen 5000, 3rd, 2nd, and 1st Gen, it’s basically like the party host that invites everyone. Setup is easy, and it’s got all the essentials, so you won’t be digging through your couch cushions for extra ports. Plus, the BIOS is user-friendly, so even if you’re not a tech wizard, you won’t feel like you’re disarming a bomb. It supports up to 128GB of RAM, which is way more than I’ll ever use (but nice to have in case I decide to run NASA simulations from my room). All in all, it’s a solid choice that gets the job done without a lot of drama – and leaves you with some cash left over for, you know, actual games ... show more
Reviewed in the United States on November 2, 2024 by Sly
    • works well and very quick
Style: ATX Size: PRIME B550-PLUS
Great motherboard
Reviewed in the United States on December 31, 2024 by Frank Lewandowski

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