E-ATX Motherboards

4 E-ATX motherboards from Supermicro, ASUS, Machinist and more. Prices run $185 to $259.

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

GenericSpec score 8.1

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

+Dual CPU socket design for high processing capacity

+Eight DDR4 slots supporting up to 512GB

+Three PCIe x16 slots for expansion cards

−Large E-ATX form factor needs a spacious case

−1G network speed is slower than newer boards

$259.90

as of 11/03/2026 23:31 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

MachinistSpec score 8.4

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

+4 pcie x16 slots: the most pcie x16 slots of the 5 here

+10 sata ports: the most sata ports of the 6 here

−256GB maximum memory: 5 of the 10 here have a higher maximum memory

$189.99

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

Compare specs

Socket	Form factor	Memory type	Maximum memory	Wired LAN	Spec score	Price
LGA2011-3	E-ATX	DDR4	256GB	1G	8.2	$184.99 as of 11/04/2026 07:07 PST - Details
LGA2011-3	E-ATX	DDR4	512GB	1G	8.1	$259.90 as of 11/03/2026 23:31 PST - Details
LGA2011-3	E-ATX	DDR4	64GB	1G	7.5	$246.27 as of 11/04/2026 08:11 PST - Details
LGA2011-3	E-ATX	DDR4	256GB		8.4	$189.99 as of 11/04/2026 00:04 PST - Details

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