Motherboards under $400

All motherboards

9 motherboards under $400 from ASUS, Supermicro, GIGABYTE and more. Most cost $301 to $382, and half cost less than $330.

Top brands: GIGABYTE (4)

GIGABYTESpec score 8.6

AM5, ATX, DDR5, 4 Memory slots

+Wi-Fi 7: the highest wi-fi of the 14 here

+5G: only 1 of 15 here have a higher wired lan

$329.99-13%List: ~~$379.99~~

as of 11/04/2026 15:08 PST - Details

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

OaknodeSpec score 7.9

LGA1700, mATX, DDR5, 4 Memory slots

+12 SATA ports for building a large storage array

+Two M.2 NVMe slots for fast cache or boot drives

+Supports up to 128GB of DDR5 memory across four slots

−Micro-ATX form factor limits expansion slot count

$300.00

as of 11/04/2026 00:47 PST - Details

Generic

AM4, 4 Memory slots, AMD B450

+Four DDR4 memory slots for expansion

+NVMe M.2 slot with PCIe 3.0 support

+AM4 socket supports Ryzen processors

−Specifications do not list the form factor

$346.36

as of 11/04/2026 15:07 PST - Details

Generic

LGA1200, ATX, 4 Memory slots, Intel Z590

+Intel Z590 chipset with LGA1200 socket

+Full ATX form factor

+Four RAM slots listed

−Full ATX size needs a larger case

$393.32

as of 11/04/2026 00:16 PST - Details

Supermicro

LGA1151, mATX, 4 Memory slots, 64GB

+Compact micro-ATX form factor

+Supports up to 64 GB of RAM

+LGA1151 socket for Intel processors

−Only four RAM slots

$382.85

as of 11/04/2026 07:10 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

Generic

AM4, ATX, 4 Memory slots, AMD B450

+ATX form factor fits standard full-size cases

+AMD B450 chipset for AM4 processors

+AM4 socket for Ryzen processors

$352.04

as of 11/04/2026 00:16 PST - Details

Generic

LGA1200, ATX, DDR4, 4 Memory slots

+Intel Z490 chipset with LGA1200 socket

+ATX form factor for full-size cases

+Four DDR4 RAM slots for memory expansion

$300.76

as of 11/04/2026 00:40 PST - Details

Compare specs

Socket	Form factor	Memory type	Chipset	Spec score	Price
AM5	ATX	DDR5	AMD X870E	8.6	$329.99 as of 11/04/2026 15:08 PST - Details
AM5	ATX	DDR5	AMD B850	8.8	$329.00 as of 11/04/2026 15:07 PST - Details
LGA1700	mATX	DDR5	Intel Q670	7.9	$300.00 as of 11/04/2026 00:47 PST - Details
AM4			AMD B450	n/a	$346.36 as of 11/04/2026 15:07 PST - Details
LGA1200	ATX		Intel Z590	n/a	$393.32 as of 11/04/2026 00:16 PST - Details
LGA1151	mATX			n/a	$382.85 as of 11/04/2026 07:10 PST - Details
AM5		DDR5	AMD B850	8.5	$321.49 as of 11/04/2026 15:08 PST - Details
AM4	ATX		AMD B450	n/a	$352.04 as of 11/04/2026 00:16 PST - Details
LGA1200	ATX	DDR4	Intel Z490	n/a	$300.76 as of 11/04/2026 00:40 PST - Details

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Motherboards under $400

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