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AMD B550 Motherboards

All motherboards

15 AMD B550 motherboards from MSI, GIGABYTE, ASUS and more. Most cost $90 to $264, and half cost less than $123.

Top brands: GIGABYTE (7)MSI (5)

GIGABYTESpec score 8.7

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
−No built-in Wi-Fi
$74.99-25%List: $99.99
as of 11/03/2026 23:11 PST - Details
GIGABYTESpec score 8.8

AM4, ATX, DDR4, 4 Memory slots

+ATX form factor with room for full-size expansion cards
+Wi-Fi 6 built in for wireless networking
+Four RAM slots supporting DDR4 memory
$109.99-8%List: $119.99
as of 11/03/2026 23:11 PST - Details
GIGABYTESpec score 9.0

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Wi-Fi 6 built in for wireless networking
+Four RAM slots supporting DDR4 memory
$126.00-19%List: $154.99
as of 11/03/2026 23:11 PST - Details
GIGABYTESpec score 8.9

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Wi-Fi 6E built in for wireless networking
+Four RAM slots supporting DDR4 memory
$138.99-7%List: $149.99
as of 11/03/2026 23:11 PST - Details
MSISpec score 9.1

AM4, mATX, DDR4, 4 Memory slots

+Built-in Wi-Fi 6E for wireless networking
+Micro-ATX form factor fits smaller builds
+Four DDR4 slots for expanding memory
−Uses older DDR4 memory rather than DDR5
−Only one PCIe x16 slot
$116.98
as of 11/04/2026 00:18 PST - Details
MSISpec score 9.5

AM4, ATX, DDR4, 4 Memory slots

+AMD B550 chipset for Ryzen 3000 to 5000 processors
+AM4 socket for older Ryzen platforms
+Four RAM slots for memory expansion
−Uses DDR4 memory rather than DDR5
−Only one PCIe x16 slot
No current price. Check it at the store.
GIGABYTESpec score 8.9

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Wi-Fi 5 built in for wireless networking
+Four RAM slots supporting DDR4 memory
No current price. Check it at the store.
GIGABYTESpec score 9.3

AM4, DDR4, 4 Memory slots, 2 M.2 slots

+Wi-Fi 7 built in, the newest wireless standard listed here
+2.5G LAN for faster wired networking
+Four RAM slots supporting DDR4 memory
$205.86-8%Was: $223.44
as of 11/03/2026 23:11 PST - Details
Generic

AM4, mATX, 4 Memory slots, AMD B550

+Micro-ATX form factor fits smaller cases
+AMD B550 chipset with AM4 socket for Ryzen processors
+Four DDR4 memory slots for larger memory configurations
−Micro-ATX layout offers fewer expansion slots than ATX
$446.16
as of 11/03/2026 23:07 PST - Details
ASRockSpec score 9.5

AM4, ATX, DDR4, 4 Memory slots

+Three M.2 slots for solid-state storage
+Built-in Wi-Fi 6E for wireless connectivity
+2.5G LAN port for faster wired networking
−Uses DDR4 memory, an older memory type than DDR5
−Only one PCIe x16 slot limits expansion options
$109.99
as of 11/04/2026 12:09 PST - Details
MSISpec score 9.1

AM4, ATX, DDR4, 4 Memory slots

+Full ATX form factor with room for expansion
+Built-in Wi-Fi 6E for wireless networking
+Four DDR4 slots for expanding memory
−Uses older DDR4 memory rather than DDR5
−Only one PCIe x16 slot
$119.99
as of 11/04/2026 00:18 PST - Details
MSISpec score 8.7

AM4, mATX, DDR4, 4 Memory slots

+Compact mATX form factor
+Four RAM slots for DDR4 memory
+AM4 socket supports AMD Ryzen 5000 and older series processors
−Only 1G LAN for wired networking
−Uses DDR4 memory rather than newer DDR5
$89.99
as of 11/04/2026 00:18 PST - Details
GIGABYTESpec score 9.3

AM4, DDR4, 4 Memory slots, 2 M.2 slots

+2.5G LAN for faster wired networking
+Wi-Fi 6E built in for wireless networking
+Four RAM slots supporting DDR4 memory
$195.10
as of 11/03/2026 23:11 PST - Details
Generic

AM4, mATX, 4 Memory slots, AMD B550

+AM4 socket supports a wide range of Ryzen processors
+Micro ATX form factor fits compact builds
+Four DDR4 slots allow larger memory configurations
$264.86
as of 11/04/2026 00:40 PST - Details
MSISpec score 8.7

AM4, mATX, DDR4, 4 Memory slots

+Two M.2 slots for fast NVMe storage
+Supports up to 128GB of memory
+Four DDR4 slots for expanding memory
No price recorded yet.

Compare specs

motherboardSocketForm factorMemory typeMemory slotsM.2 slotsSpec scorePrice
AM4mATXDDR4428.7$74.99
as of 11/03/2026 23:11 PST - Details
AM4ATXDDR4428.8$109.99
as of 11/03/2026 23:11 PST - Details
AM4mATXDDR4429.0$126.00
as of 11/03/2026 23:11 PST - Details
AM4mATXDDR4428.9$138.99
as of 11/03/2026 23:11 PST - Details
AM4mATXDDR449.1$116.98
as of 11/04/2026 00:18 PST - Details
AM4ATXDDR449.5No current price
AM4mATXDDR4428.9No current price
AM4DDR4429.3$205.86
as of 11/03/2026 23:11 PST - Details
AM4mATX4n/a$446.16
as of 11/03/2026 23:07 PST - Details
AM4ATXDDR4439.5$109.99
as of 11/04/2026 12:09 PST - Details

Before you buy

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.