When you buy through our links, we may earn a commission. Learn more ›
Wiki Shopping

40 Gbps Network Cards

All Network Cards

5 40 gbps network cards. Most cost $253 to $809, and half cost less than $517.

Top brands: IntelTP-LinkUGREENWisoquBrosTrendRenkforceStarTech.comHewlett Packard Enterprise

LpxlqklypSpec score 9.5

40 Speed, 2 Ports, PCI, QSFP

+40 Gbps speed for high-throughput server links
+Two QSFP+ ports for dual connections
+Intel XL710 chipset
−Requires QSFP+ transceivers or cables to connect
$253.09
as of 11/04/2026 09:09 PST - Details
LpxlqklypSpec score 8.9

40 Speed, 1 Ports, PCIe, QSFP

+40 Gbps speed for high-throughput server links
+Single QSFP+ port
+PCIe 3.0 x8 interface
−Requires QSFP+ transceivers or cables to connect
−Short bracket only fits low-profile slots
$304.84
as of 11/04/2026 09:09 PST - Details
LpxlqklypSpec score 9.5

40 Speed, 2 Ports, PCIe, QSFP

+40 Gbps speed per port
+Two QSFP ports on one card
+PCIe 3.0 x8 bus connection
$535.55
as of 11/04/2026 09:09 PST - Details
Generic

40 Speed, Intel

+40 Gigabit speed, well above typical adapters
+Dual power ports listed for extra power supply
+Intel chip listed for a known network controller
$809.39
as of 11/04/2026 03:09 PST - Details
Generic

40 Speed, Intel

+40 Gbps Ethernet speed for high bandwidth connections
+Intel chip for 40 gigabit networking
+Converged network adapter supports combined data and storage traffic
$517.00
as of 11/04/2026 06:05 PST - Details

Compare specs

network cardSpeedPortsInterfacePort typeControllerSpec scorePrice
402PCIQSFPIntel9.5$253.09
as of 11/04/2026 09:09 PST - Details
401PCIeQSFPIntel8.9$304.84
as of 11/04/2026 09:09 PST - Details
402PCIeQSFPIntel9.5$535.55
as of 11/04/2026 09:09 PST - Details
40Inteln/a$809.39
as of 11/04/2026 03:09 PST - Details
40Inteln/a$517.00
as of 11/04/2026 06:05 PST - Details

Before you buy

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