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ASRock B550m Pro4 AMD Am4 Micro ATX Motherboard

4.54 product ratings

Newegg (1048275)

98.9% positive feedback

Price:

$81.99

Free 2-4 day delivery

Get it between Mon, Oct 27 and Wed, Oct 29

Returns:

30 days returns. Seller pays for return shipping.

Condition:

New

Learn more aboutASRock B550M PRO4. B550M PRO4. Supports AMD Ryzen 5000 Series / 5000 G-Series / 4000 G-Series / 3000 Series / 3000 G-Series Processors Not compatible with AMD Athlon Processors. BIOS update might require for AMD Zen 3 Ryzen 5000 Series CPU.

About this product

Product Identifiers

BrandASRock

GTIN4710483931598

UPC4710483931598

eBay Product ID (ePID)3043204969

Product Key Features

Socket TypeSocket AM4

Most Suitable ForCasual Computing, Gaming, Graphic Design

Memory TypeDDR4 SDRAM

Compatible CPU BrandAMD, Intel

Input/Output PortsDisplayPort, USB 3.1, SATA III, USB 3.0, VGA, Ethernet (RJ-45), D-Sub, USB 2.0, HDMI, USB-C, PS/2

Form FactorATX

Expansion SlotsPCI Express, PCI Express 2.0 x4, PCI Express 4.0 x16, PCI Express 3.0 x16, 1 x PCI Express 2.0 x16 ( x4 mode ), M.2, PCI Express 3.0 x1, PCI Express x1, 3 x PCI Express 3.0 x16, PCI Express 2.0 x16, PCI, PCI Express x16

FeaturesDual LAN, On-Board Audio, Multi-GPU Support, On-Board Video Chipset

Number of Memory Slots4

Dimensions

Item Height2.5 in

Weight2.69 Pounds

Depth244 mm

Ratings and Reviews

Learn more

4.5

4 product ratings

3 users rated this 5 out of 5 stars
0 users rated this 4 out of 5 stars
1 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Most relevant reviews

by biggspliff
Aug 10, 2025
So this board is really a challenge to f...
So this board is really a challenge to flash. I had to power cycle dozens of times before I could get to change the bios to support my cpu. I contemplated returning it after growing tired of the reboots but eventually I got it flashed to a lower bios. If you're lucky to have it working, don't update the bios unless it specifically is for your cpu.
Verified purchase: YesCondition: New
by bluep-55
Jul 22, 2025
Surprising amount of features for a mATX...
Surprising amount of features for a mATX board. 2 m.2 slots, 1 PCIe wi-fi card slot, and PCIe Gen 4 support are all very nice things to have.
Verified purchase: YesCondition: New
by dongoe_0
Oct 03, 2025
This older type mother board needed some...
This older type mother board needed some tlc . I had to flash the bios to get my AMD Ryzen 5700g processor to work on this mother board, but it up & running .Thanks
Verified purchase: YesCondition: Pre-owned
by multipalrockzero
Jul 31, 2025
Excellent. The PSU works like a charm....
Excellent. The PSU works like a charm.
Verified purchase: YesCondition: New