40 Gbps Network Cards

3 40 gbps network cards. Prices run $99 to $170.

AkpzkyywnSpec score 9.5

40 Speed, 2 Ports, Mellanox

+Dual ports for two network connections

+Mellanox chip listed in the specifications

+40 Gbps speed, well above typical 10 Gbps cards

−Speed is 40 Gbps, requiring compatible infrastructure

$98.78

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

LpxlqklypSpec score 9.5

40 Speed, 2 Ports, PCIe, QSFP

+Dual-port design with two 40 Gbps ports

+PCIe 3.0 x8 interface

+Includes two QSFP+ modules

$170.26

as of 11/04/2026 09:09 PST - Details

Lpxlqklyp

40 Speed, Mellanox

+40G network speed for high-bandwidth connections

+Mellanox chipset for ConnectX-3 VPI compatibility

+Available in short and long bracket configurations

$155.15

as of 11/04/2026 09:09 PST - Details

Compare specs

Speed	Ports	Interface	Port type	Controller	Spec score	Price
40	2			Mellanox	9.5	$98.78 as of 11/04/2026 10:07 PST - Details
40	2	PCIe	QSFP	Mellanox	9.5	$170.26 as of 11/04/2026 09:09 PST - Details
40				Mellanox	n/a	$155.15 as of 11/04/2026 09:09 PST - Details

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