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E-ATX Motherboards

All motherboards

6 E-ATX motherboards from Supermicro, ASUS, Machinist and more. Most cost $246 to $1,103, and half cost less than $420.

Top brands: Supermicro (4)

All filtersFilters (2)×
Form factor: E-ATX  ×ECC memory support: ECC memory support  ×Clear all
BrandSupermicro4Shangzhaoyuan1Wisoqu1
SocketLGA20112LGA2011-32LGA13661LGA41891
Form factorE-ATX6
Memory typeDDR45
Memory slots83161
Maximum memory1TB2256GB1288GB14TB164GB1
SATA ports102
Wired LAN1G3
ECC memory supportECC memory support6
ChipsetIntel C6122Intel C621A1Intel X991
PriceUnder $2001Under $2502Under $3002Under $6001Under $7001Under $1,2001$250 & above4$600 & above2
Clear allShow 6 motherboards
Form factor: E-ATX  ×ECC memory support: ECC memory support  ×6 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
ShangzhaoyuanSpec score 8.2

LGA2011-3, E-ATX, DDR4, 256GB

+Dual CPU support for multi-processor workloads
+Supports up to 256GB of RAM
+Four PCIe x16 slots for multiple expansion cards
−Large E-ATX form factor needs a full-size case
−Uses the older LGA2011-3 socket
$184.99
as of 11/04/2026 07:07 PST - Details
SupermicroSpec score 8.2

LGA2011, E-ATX, DDR4, 8 Memory slots

+Supports up to 1024 GB of RAM
+Supports ECC memory
+Eight RAM slots
−E-ATX form factor needs a large case
$696.99
as of 11/04/2026 07:10 PST - Details
WisoquSpec score 7.5

LGA2011-3, E-ATX, DDR4, 8 Memory slots

+Eight memory slots support up to 64GB of RAM
+ECC memory support for error-checking
+Gigabit LAN for wired networking
−Maximum memory of 64GB limits large workloads
−Extended ATX size needs a large case
$246.27
as of 11/04/2026 08:11 PST - Details
SupermicroSpec score 9.2

LGA4189, E-ATX, DDR4, 16 Memory slots

+Supports up to 4096 GB of DDR4 memory
+Sixteen RAM slots for large memory configurations
+Four M.2 slots for multiple fast storage drives
$1,103.20
as of 11/04/2026 07:10 PST - Details
Supermicro

LGA1366, E-ATX, 288GB

+Intel 5520 dual processor platform
+E-ATX form factor with room for expansion
+Supports up to 288GB of DDR3 memory
$580.00
as of 11/04/2026 07:10 PST - Details
SupermicroSpec score 8.0

LGA2011, E-ATX, DDR4, 8 Memory slots

+Intel C612 chipset for server-class platforms
+Supports up to 1024 GB of DDR4 memory
+ECC memory support for error correction
−E-ATX form factor needs a larger case
$260.00
as of 11/04/2026 07:10 PST - Details

Compare specs

motherboardSocketForm factorMemory typeMaximum memoryWired LANSpec scorePrice
LGA2011-3E-ATXDDR4256GB1G8.2$184.99
as of 11/04/2026 07:07 PST - Details
LGA2011E-ATXDDR41TB1G8.2$696.99
as of 11/04/2026 07:10 PST - Details
LGA2011-3E-ATXDDR464GB1G7.5$246.27
as of 11/04/2026 08:11 PST - Details
LGA4189E-ATXDDR44TB9.2$1,103.20
as of 11/04/2026 07:10 PST - Details
LGA1366E-ATX288GBn/a$580.00
as of 11/04/2026 07:10 PST - Details
LGA2011E-ATXDDR41TB8.0$260.00
as of 11/04/2026 07:10 PST - Details

Before you buy

Other Form factor options

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Popular filters

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Motherboards by use

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Related product types

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