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40 Gbps Network Cards

All Network Cards

7 40 gbps network cards. Most cost $253 to $2,929, and half cost less than $499.

All filtersFilters (2)×
Speed: 40  ×Port type: QSFP  ×Clear all
BrandChelsio Communications1
Speed407
Ports2411
InterfacePCIe6PCI1
Port typeQSFP7
ControllerIntel3Mellanox1
PriceUnder $2001Under $3001Under $4001Under $5001Under $6001Under $3,0002$150 & above7$400 & above4$800 & above2$2,500 & above2
Clear allShow 7 Network Cards
Speed: 40  ×Port type: QSFP  ×7 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
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
Akpzkyywn

40 Speed, PCIe, QSFP

+Provides 40 Gbps speed for high-throughput networking
+Uses a PCIe bus that fits standard expansion slots
+Has a QSFP port for fiber connectivity
−QSFP port needs a compatible QSFP transceiver or cable
$2,929.92
as of 11/04/2026 03:07 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
Aglbvbquo

40 Speed, PCIe, QSFP

+Provides 40 Gbps speed for high-throughput networking
+Uses a PCIe bus that fits standard expansion slots
+Has a QSFP port for fiber connectivity
−QSFP port needs a compatible QSFP transceiver or cable
$2,929.92
as of 11/04/2026 03:07 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
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
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
40PCIeQSFPn/a$2,929.92
as of 11/04/2026 03:07 PST - Details
402PCIeQSFP9.5$499.00
as of 11/04/2026 06:05 PST - Details
40PCIeQSFPn/a$2,929.92
as of 11/04/2026 03:07 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

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