Which Ryzen CPUs does it support?

AMD AM4 chips: Ryzen 5000 series, 4000 G-series and 3000 series desktop processors. Check the board's CPU support list for the exact model before buying.

Yes. It has onboard 802.11ac Wi-Fi, so no separate wireless card is needed. It is Wi-Fi 5, not Wi-Fi 6.

How many M.2 drives can I install?

Two. One slot runs at PCIe 4.0 with a Ryzen 5000 or 3000 CPU, the other at PCIe 3.0.

Is it good for a compact gaming build?

Yes. The micro ATX size fits smaller cases, and PCIe 4.0 plus the heatsinks suit a mid-range Ryzen gaming PC.

Does it support RGB lighting?

Yes. Aura Sync works with addressable RGB strips and compatible gear.

What comes in the box?

The motherboard, I/O shield, SATA cables, Wi-Fi antenna and documentation. Confirm contents with the seller.

Where is the Asus Prime B550M-A AC Desktop Motherboard cheapest?

At Walmart, for $89.99, as of our latest check.

Asus Prime B550M-A AC Desktop Motherboard

Best price now

$89.99at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

Asus Prime B550M-A AC Desktop Motherboard

Best price now

$89.99at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $89.99 at Walmart on Nov 10.

Our take on the Asus Prime B550M-A AC Desktop Motherboard

The Asus Prime B550M-A AC is a micro ATX motherboard for AMD's AM4 socket, built around the B550 chipset. It runs Ryzen 5000, 4000 G-series and 3000 series chips, and pairs two M.2 slots and PCIe 4.0 with onboard 802.11ac Wi-Fi, which many budget B550 boards leave out. VRM and chipset heatsinks plus Fan Xpert 2+ cover cooling, and Aura Sync handles RGB. It suits a compact Ryzen build that needs wireless out of the box; rivals in the same class often drop Wi-Fi or the second M.2 to hit a lower tier.

Best forMicro ATX Ryzen buildsBuilders who want onboard Wi-FiCompact gaming or office PCsFirst-time AM4 builders

Pros

Onboard 802.11ac Wi-Fi saves a card slot
Two M.2 slots, one wired for PCIe 4.0
VRM and chipset heatsinks included
USB 3.2 Gen 2 Type-A for fast peripherals
Aura Sync RGB header support

Cons

Micro ATX limits expansion versus full ATX
No PCIe 5.0, as expected on B550
Wi-Fi is 802.11ac, not Wi-Fi 6
Only four DIMM slots and modest rear I/O

Asus Prime B550M-A AC Desktop Motherboard prices at every store

WalmartNew
In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$89.99Free shippingChecked Nov 10
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What reviewers say

4.6 / 518 ratings

Rated 4.6 out of 5 from 18 ratings.

What people mention

Wi-FiPraisedOwners like having 802.11ac wireless built in instead of buying a separate card.
StabilityPraisedBuyers report it runs Ryzen 5000 processors without fuss.
SetupPraisedBuilders find the BIOS and layout straightforward for a first build.
ExpansionCriticisedSome wish micro ATX left room for more cards and ports.
Rear I/OMixedThe port selection is called adequate rather than generous.

About the Asus Prime B550M-A AC Desktop Motherboard

The ASUS Prime B550M-A AC is a Micro ATX desktop motherboard with an AMD B550 chipset and an AM4 socket. It supports Ryzen 5000 Series, 4000 G-Series and 3000 Series desktop processors.

For cooling, it has a VRM heatsink, a PCH heatsink and Fan Xpert 2+. Connectivity includes dual M.2 slots, PCIe 4.0, 802.11ac Wi-Fi and USB 3.2 Gen 2 Type-A.

Aura Sync RGB lets you synchronize LED effects across compatible PC gear, including addressable RGB strips.

Form factor: Micro ATX
Socket: AMD AM4
Chipset: AMD
Compatibility: Ryzen 5000 Series, Ryzen 4000 G-Series and Ryzen 3000 Series desktop processors
Cooling: VRM heatsink, PCH heatsink, Fan Xpert 2+
Storage: Dual M.2
Expansion: PCIe 4.0
Wireless: 802.11ac Wi-Fi
USB: USB 3.2 Gen 2 Type-A
Lighting: Aura Sync RGB, supports addressable RGB strips

Specifications

color: OtherSource
size: Micro ATXSource

Questions and answers

Which Ryzen CPUs does it support?: AMD AM4 chips: Ryzen 5000 series, 4000 G-series and 3000 series desktop processors. Check the board's CPU support list for the exact model before buying.
Does it have Wi-Fi?: Yes. It has onboard 802.11ac Wi-Fi, so no separate wireless card is needed. It is Wi-Fi 5, not Wi-Fi 6.
How many M.2 drives can I install?: Two. One slot runs at PCIe 4.0 with a Ryzen 5000 or 3000 CPU, the other at PCIe 3.0.
Is it good for a compact gaming build?: Yes. The micro ATX size fits smaller cases, and PCIe 4.0 plus the heatsinks suit a mid-range Ryzen gaming PC.
Does it support RGB lighting?: Yes. Aura Sync works with addressable RGB strips and compatible gear.
What comes in the box?: The motherboard, I/O shield, SATA cables, Wi-Fi antenna and documentation. Confirm contents with the seller.
Where is the Asus Prime B550M-A AC Desktop Motherboard cheapest?: At Walmart, for $89.99, as of our latest check.
What do buyers say about the Asus Prime B550M-A AC Desktop Motherboard?: Rated 4.6 out of 5 from 18 ratings.