We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with two silver QSFP+ ports, full-height and low-profile metal brackets, PCIe x8 gold edge connector

BFKK

BFKK 40G QSFP+ Dual Port Intel XL710 PCIe 3.0 x8 Network Card

SKU CH-N5S7-GE3W8

Dual QSFP+ ports deliver 40 Gbps per port over PCIe 3.0 x8 with Intel XL710 controller for server networking

  • Dual QSFP+ ports deliver 40 Gbps bandwidth per port
  • Intel XL710 controller supports advanced virtualization and traffic management
  • PCIe 3.0 x8 interface provides 8.0 GT/s throughput
  • Low-profile and full-height brackets fit standard and slim servers
  • Broad OS support from Windows 7 through Server 2016 and Linux kernels 2.6.32 to 4.x

40G QSFP+ dual-port server NIC

This network card adds two 40GbE QSFP+ ports to a server or workstation through a PCIe 3.0 x8 slot. It is built around the Intel XL710 controller and targets administrators who need high-throughput wired connectivity for storage, virtualisation or backbone links.

PCIe 3.0 x8 electrical requirement

The card operates at 8.0 GT/s across eight lanes and fits both x8 and x16 slots. A platform that cannot supply a full x8 electrical connection will limit throughput, so verify the slot wiring before purchase.

Passive cooling with standard airflow

No onboard fan is present; the board relies on chassis airflow across its heatsink. In a correctly ventilated server the card runs silently and draws only the power the XL710 controller and QSFP+ modules require.

Highlights

  • Dual QSFP+ ports deliver 40 Gbps bandwidth per port
  • Intel XL710 controller supports advanced virtualization and traffic management
  • PCIe 3.0 x8 interface provides 8.0 GT/s throughput
  • Low-profile and full-height brackets fit standard and slim servers
  • Broad OS support from Windows 7 through Server 2016 and Linux kernels 2.6.32 to 4.x

Specifications

No published specifications for this item yet.

Questions about this item

What does 40 Gbps per port actually deliver inside a server?

Each QSFP+ port runs at up to 40 Gbps, giving two independent 40 GbE links for high-throughput workloads such as storage replication or virtual-machine migration.

How does the PCIe 3.0 x8 interface limit real-world throughput?

The card uses a PCIe 3.0 x8 slot at 8.0 GT/s, providing enough bandwidth for both 40 GbE ports to operate at line rate without bottleneck.

Which brackets are supplied so the card fits my chassis?

Both a low-profile bracket and a full-height bracket are included, letting the card install in standard servers or slim 1U systems.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.