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ASUS PRIME B450M-A/CSM AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard

Ships from United States. Most customers receive within 5-9 days.

Sold and Shipped by SpicyBomb a-seller

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
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  • Powered by 2nd generation AMD Ryzen AM4 processors to maximize connectivity and speed with NVMe M.2, USB 3.1 Gen2, DDR4 and Gigabit LAN
  • ASUS Corporate Stable Model complimentary Advance Replacement and long lifecycle with a COM header and PS2 ports for legacy needs
  • 5X Protection III hardware-level safeguards provide component longevity and reliability
  • Aura Sync RGB header provides a nearly endless spectrum of colors with the ability to synchronize effects across an ever-expanding ecosystem of enabled products
  • Unique SafeSlot Core fortified PCIe slot prevents damage caused by heavyweight GPUs

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

Learn more about the ASUS PRIME B450M-A/CSM

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good board for the price 7/7/2020 3:39:00 PM

Pros: Only AM4 board in stock a few weeks ago when I was putting a system together. It was supposed to be a temporary board until some X570s were in stock. I was pleasantly surprised at the features per dollar for this board. It now resides in my Wife’s parents computer.

Cons: Only has PCIe v3, but given the chipset that’s a given

Overall Review: Great board for the cost

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Great product. But build was kind of strange 7/4/2020 9:02:32 AM

Cons: The screws were kinda big for the motherboard and the holes were inconsistent sizes so only a few screws fit

Overall Review: But it works great and would reccomend

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good as usual 7/1/2020 1:08:51 PM

Overall Review: Booted on first try. Runs as expected with Ryzen 5 3600. Been using ASUS for years without issue. This one replaced an older ASUS AM3 board which I ran for 5 years and have now relegated to Linux duty.

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Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Pretty Basic but Effective AM4 Board 6/30/2020 8:44:45 AM

Pros: -Asus bios
-4 dimm slots
-Value
-Good amount of SATA ports

Overall Review: Got this for an unRAID NAS build and it has all the features I need at a good value. Purchased during COVID supply shortages, so good on Newegg for having these boards in stock. Solid motherboard with good features for simple builds.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good 6/22/2020 10:58:57 AM

Pros: All

Cons: None

Overall Review: Best

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
1/ 5
Cannot get it to boot up 6/20/2020 3:55:05 PM

Cons: Documentation not proper had to take pictures and enlarge . I Think I got everything installed correctly but I cannot get the machine to bios prompt.

Overall Review: Not happy

0 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Manish N,

We certainly understand your disappointment and the inconvenience this may have caused you. Please provide me more detail on the symptoms your system is currently exhibiting. You can reach me at cl-adrian@asus.com. Your case for reference is N200683496.

Thank you for choosing ASUS!

Best Regards,
Adrian
ASUS Customer Loyalty – US Support
Anonymous
4/ 5
Compatibility 6/17/2020 11:34:00 PM

Overall Review: Is this board compatible with ryzen 5 3600?

0 out of 17 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great Mobo at Great Price! Some Issues 6/16/2020 5:32:19 AM

Pros: Small form factor to use with M-ATX cases. Despite the Size, there is still a ton of functionality out of this thing. Plenty of USB ports and hookups for all your tower goodies.

M2 port for a nice modern way to update storage spice was a great perk i didn't realize I needed until received!

Cons: Modern Graphics card will cover the PCI-E port, which is a disappointment since there is no wireless/bluetooth onboard. in my M-ATX tower, the GPU sit's about 3/4" above the PSU compartment, which is a major downside in regards to airflow. Regardless, I never get above 84 deg. and my average is probably closer to 79-80.

Also, installing Case accessories is a pain the budinkus on this thing. I had to remove the GPU, place mobo in case, fully hook up mobo, align mobo as close as possible to final position, install GPU, force mobo into place and install. Maybe this is just a common problem with M-ATX, but it ends up being so tight/cables with no extra length that you really gotta do the final install steps with it as close to installed as possible.

Overall Review: Great budget Mobo if that's the kind of build you're doing. Just take note, you definitely are making sacrifices to ease of assembly/installation as well as ability to update with such a small mobo. For what it is, though, it's a great product. BIOS software is super smart and easy to use as well...Exactly what you would expect from Asus.

1 out of 2 people found this review helpful. Did you?
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    Ships from United States.
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