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40 Gbps Network Cards

All Network Cards

5 40 gbps network cards. Most cost $99 to $535, and half cost less than $253.

All filtersFilters (2)×
Speed: 40  ×Ports: 2  ×Clear all
BrandChelsio Communications1
Speed405
Ports2511
InterfacePCIe3PCI1
Port typeQSFP4
ControllerIntel2Mellanox2
PriceUnder $1001Under $2001Under $3001Under $5001Under $6001$150 & above4$400 & above2
Clear allShow 5 Network Cards
Speed: 40  ×Ports: 2  ×5 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
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, 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
Chelsio CommunicationsSpec score 9.5

40 Speed, 2 Ports, PCIe, QSFP

+Two ports for dual network connections
+Supports 40 Gb/s speed on each port
+Low profile form factor fits small chassis
$499.00
as of 11/04/2026 06:05 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
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

Compare specs

network cardSpeedPortsInterfacePort typeControllerSpec scorePrice
402Mellanox9.5$98.78
as of 11/04/2026 10:07 PST - Details
402PCIQSFPIntel9.5$253.09
as of 11/04/2026 09:09 PST - Details
402PCIeQSFP9.5$499.00
as of 11/04/2026 06:05 PST - Details
402PCIeQSFPMellanox9.5$170.26
as of 11/04/2026 09:09 PST - Details
402PCIeQSFPIntel9.5$535.55
as of 11/04/2026 09:09 PST - Details

Before you buy

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Popular filters

Network Cards under $100803Network Cards under $75762Network Cards under $50707Network Cards under $25547USB Network Cards473RJ45 Network Cards473PCIe Network Cards320Network Cards with Intel Controllers207

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