Motherboards with 1 PCIe x16 Slot

2 motherboards with 1 PCIe x16 Slot from ASRock, MSI, GIGABYTE and more. Prices run $748 to $1,426.

SupermicroSpec score 9.5

LGA2011, E-ATX, DDR4, 16 Memory slots

+Sixteen RAM slots for large memory configurations

+Ten SATA ports for many storage drives

+E-ATX form factor for expanded board layout

−Single PCIe x16 slot limits expansion cards

−E-ATX form factor needs a larger case

$1,426.10

as of 11/04/2026 07:10 PST - Details

SupermicroSpec score 9.3

LGA2011, DDR4, 16 Memory slots, 1TB

+10G LAN speed for fast networking

+Supports up to 1024 GB of RAM

+Sixteen RAM slots for large memory capacity

−Only one PCIe x16 slot

$748.44

as of 11/04/2026 00:23 PST - Details

Compare specs

motherboard	Socket	Form factor	Memory type	Memory slots	PCIe x16 slots	Spec score	Price
	LGA2011	E-ATX	DDR4	16	1	9.5	$1,426.10 as of 11/04/2026 07:10 PST - Details
	LGA2011		DDR4	16	1	9.3	$748.44 as of 11/04/2026 00:23 PST - Details

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