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Motherboards under $400

All motherboards

34 motherboards under $400 from ASUS, Supermicro, GIGABYTE and more. Most cost $306 to $393, and half cost less than $351.

Top brands: ASUS (6)Supermicro (5)GIGABYTE (4)MSI (4)

ASUSSpec score 9.5

LGA1851, ATX, DDR5, 7 M.2 slots

+Wi-Fi 7: the highest wi-fi of the 14 here
+7 m.2 slots: the most m.2 slots of the 10 here
$328.95-18%List: $399.99
as of 11/03/2026 21:57 PST - Details
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 11/03/2026 23:11 PST - Details
ASUSSpec score 8.5

LGA1700, ATX, DDR5, 2.5G

+Z790 chipset supports Intel overclocking
+DDR5 memory support for faster system memory
+2.5Gb LAN for faster wired networking
−ATX form factor needs a larger case
$308.90-12%Was: $349.99
as of 11/03/2026 21:56 PST - Details
ASUSSpec score 8.9

AM5, ATX, DDR5, 5 M.2 slots

+Wi-Fi 7: the highest wi-fi of the 14 here
+5G: only 1 of 15 here have a higher wired lan
$399.99-11%List: $449.99
as of 11/03/2026 21:57 PST - Details
MSISpec score 8.9

AM5, ATX, DDR5, 5G

+Wi-Fi 7: the highest wi-fi of the 14 here
+5G: only 1 of 15 here have a higher wired lan
$389.99-9%List: $429.99
as of 11/04/2026 00:18 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
$315.43
as of 11/03/2026 21:56 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 11/03/2026 23:11 PST - Details
Supermicro

LGA1700, ITX, DDR5, 2 Memory slots

+Mini-ITX form factor for compact builds
+DDR5 memory support
+ECC memory support for error-correcting RAM
−Only two RAM slots
−Maximum memory capacity of 64 GB
$355.00
as of 11/04/2026 07:10 PST - Details
MSISpec score 8.5

AM5, ATX, DDR5, 2.5G

+AMD X670E chipset for Ryzen 7000 to 9000 processors
+AM5 socket with DDR5 memory support
+PCIe 5.0 support for fast expansion cards
$390.00
as of 11/04/2026 00:18 PST - Details
ASUSSpec score 9.0

AM5, mATX, DDR5, 4 M.2 slots

+Compact mATX form factor for smaller builds
+AMD B850 chipset for AM5 Ryzen processors
+Four M.2 slots for multiple storage drives
−Fewer expansion options than full ATX boards
$350.66
as of 11/03/2026 21:57 PST - Details
ASUSSpec score 8.2

AM5, ITX, DDR5, 2 M.2 slots

+Mini-ITX form factor fits compact builds
+Built-in Wi-Fi 6E for faster wireless
+2.5G LAN for faster wired networking
−Only two M.2 slots for storage expansion
−Limited to the AM5 socket
$317.12
as of 11/03/2026 21:57 PST - Details
MSISpec score 8.9

AM5, ATX, DDR5, 5G

+AM5 socket supports AMD Ryzen 9000, 8000 and 7000 processors
+Wi-Fi 7 wireless built in
+5G LAN for fast wired networking
−ATX form factor needs a standard full-size case
$329.99
as of 11/04/2026 00:18 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 11/03/2026 23:07 PST - Details
Generic

AM4, mATX, DDR4, AMD A520

+AMD A520 chipset for AM4 processors
+Micro ATX form factor fits compact builds
+DDR4 memory support for AM4 platforms
−A520 chipset does not support CPU overclocking
$344.76
as of 11/04/2026 00:16 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
Bjnskdgagb

LGA1200, ATX, DDR4, Intel Z590

+Intel Z590 chipset for Intel LGA1200 processors
+ATX form factor with room for full-size expansion
+DDR4 memory support
−Requires LGA1200 processors, not compatible with newer sockets
$344.86
as of 11/04/2026 00:16 PST - Details
Generic

LGA2011-3, ITX, DDR4, Intel X99

+Compact Mini-ITX form factor for small builds
+Supports ECC memory
+Includes 64GB of DDR4 memory
−Single-socket layout limits upgrade options compared with larger boards
$381.48
as of 11/04/2026 00:41 PST - Details
Supermicro

LGA2011, ATX, DDR4, 1 PCIe x16 slots

+Extended ATX form factor for larger server builds
+LGA2011 socket with DDR4 memory support
+Built-in 1G LAN for network connectivity
−Only one PCIe x16 slot limits expansion options
$390.00
as of 11/04/2026 07:10 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 8.6

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

+Four M.2 sockets for storage expansion
+5G LAN for fast wired networking
+Built-in Wi-Fi 7 connectivity
$389.94
as of 11/03/2026 23:11 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 11/03/2026 23:11 PST - Details
SupermicroSpec score 8.4

LGA2011, 8 Memory slots, 256GB, 1G

+Supports ECC memory
+Eight RAM slots for large memory capacity
+Supports up to 256 GB of RAM
$398.95
as of 11/04/2026 07:10 PST - Details
Generic

DDR4, Intel B760

+Built on the Intel B760 chipset
+Uses DDR4 memory for system memory
+Fits a 1700-pin processor socket
$384.26
as of 11/03/2026 23:07 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
Bjnskdgagb

AM4, ATX, DDR4, AMD X570

+AMD X570 chipset for AM4 Ryzen processors
+PCI-E 4.0 support for fast expansion cards
+DDR4 memory support
$397.02
as of 11/04/2026 00:16 PST - Details
Bjnskdgagb

6 PCIe x16 slots

+Six PCI-E x16 slots for multiple expansion cards
+Supports up to 512GB of DDR3 memory
+Built for server-class workloads with a C602 chipset
$305.50
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

motherboardSocketForm factorMemory typeChipsetSpec scorePrice
LGA1851ATXDDR5Intel Z8909.5$328.95
as of 11/03/2026 21:57 PST - Details
AM5ATXDDR5AMD X870E8.6$329.99
as of 11/03/2026 23:11 PST - Details
LGA1700ATXDDR5Intel Z7908.5$308.90
as of 11/03/2026 21:56 PST - Details
AM5ATXDDR58.9$399.99
as of 11/03/2026 21:57 PST - Details
AM5ATXDDR5AMD X870E8.9$389.99
as of 11/04/2026 00:18 PST - Details
AM5ATXDDR5AMD B8508.6$315.43
as of 11/03/2026 21:56 PST - Details
AM5ATXDDR5AMD B8508.8$329.00
as of 11/03/2026 23:11 PST - Details
LGA1700ITXDDR5n/a$355.00
as of 11/04/2026 07:10 PST - Details
AM5ATXDDR5AMD X670E8.5$390.00
as of 11/04/2026 00:18 PST - Details
AM5mATXDDR5AMD B8509.0$350.66
as of 11/03/2026 21:57 PST - Details

Before you buy

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