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Motherboards under $400

All motherboards

3 motherboards under $400 from ASUS, Supermicro, GIGABYTE and more. Prices run $318 to $329.

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M.2 slots: 3  ×Clear all
BrandGIGABYTE2ASUS1
SocketAM53
Form factorATX2
Memory typeDDR53
Memory slots42
M.2 slots3343225171
Wired LAN5G210G1
Wi-FiWi-Fi 73
ChipsetAMD B8503
Clear allShow 3 motherboards
M.2 slots: 3  ×3 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
GIGABYTESpec score 8.8

AM5, ATX, DDR5, 4 Memory slots

+Three M.2 sockets for storage expansion
+10G LAN for very fast wired networking
+Built-in Wi-Fi 7 connectivity
−Larger ATX size needs a bigger case
$329.00-6%List: $349.99
as of 11/04/2026 15:07 PST - Details
ASUSSpec score 8.6

AM5, ATX, DDR5, 3 M.2 slots

+Built-in Wi-Fi 7 for current wireless standards
+5G LAN for faster wired networking
+Three M.2 slots for storage expansion
−Fewer M.2 slots than higher-tier ProArt boards
−Limited to the AM5 socket
$317.95
as of 11/04/2026 12:09 PST - Details
GIGABYTESpec score 8.5

AM5, DDR5, 4 Memory slots, 3 M.2 slots

+AM5 socket supports AMD Ryzen 9000 Series processors
+Three M.2 slots for multiple fast storage drives
+Wi-Fi 7 built in for wireless connectivity
$321.49
as of 11/04/2026 15:08 PST - Details

Compare specs

motherboardSocketForm factorMemory typeChipsetSpec scorePrice
AM5ATXDDR5AMD B8508.8$329.00
as of 11/04/2026 15:07 PST - Details
AM5ATXDDR5AMD B8508.6$317.95
as of 11/04/2026 12:09 PST - Details
AM5DDR5AMD B8508.5$321.49
as of 11/04/2026 15:08 PST - Details

Before you buy

Other price ranges

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Popular filters

DDR4 Motherboards199DDR5 Motherboards190ATX Motherboards165mATX Motherboards152Motherboards under $200112Motherboards under $150109AM5 Motherboards99Motherboards with 4 Memory Slots96

Motherboards by use

Gaming Motherboards81LGA1700 DDR5 Motherboards47Budget Motherboards58Workstation Motherboards60

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