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Green rectangular PCIe card with four SFP+ cages and full-height bracket

C&N

C&N 10Gb PCIe 3.0 x8 Quad SFP+ Network Card BCM57840

SKU CH-2WAT-DCAN8

A quad-port 10 GbE SFP+ adapter on a PCIe 3.0 x8 interface with Broadcom BCM57840 controller for server and workstation networking

  • Rated speed10 Gbit/s
  • Key featuresDesktop
  • Product dimensions162.0 in × 68.0 in × 20.0 in
  • Product weight260 g
  • Quad SFP+ ports deliver 10 Gbps throughput each for high-density server links
  • PCIe 3.0 x8 interface fits both x8 and x16 slots without adapter cables
  • Broadcom BCM57840 controller supports SR-IOV and on-chip TOE for virtualised workloads
  • Low-profile and full-height brackets included for flexible chassis mounting
  • Driver CD covers Windows Server 2008, 2012, Linux and VMware ESX out of the box

Quad 10 Gb SFP+ NIC for servers

The C&N BCM57840 network adapter adds four SFP+ ports that operate at 10 Gbps over PCI Express 3.0 x8. It fits x8 or x16 slots and targets administrators who need dense 10 Gb Ethernet connectivity for virtualised workloads or storage traffic in rack-mount servers.

Check slot width and bracket height

Your motherboard must provide a PCIe 3.0 x8 or x16 slot with enough physical clearance for a full-height bracket; the card also ships with a low-profile bracket for compact chassis. Verify that the operating system is among the supported Windows Server, Windows client, Linux or VMware ESX releases listed in the specifications.

Sustained throughput with hardware offload

On-chip TOE, SR-IOV and checksum offload move protocol processing onto the controller, keeping CPU utilisation low during continuous 10 Gb flows. Jumbo frames up to 9 KB MTU reduce per-packet overhead, while MSI-X and virtualisation queues maintain consistent latency under heavy multi-tenant load.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $320.99
Pricier than about 79% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameC&N
Performance
Rated speed10 Gbit/s
Size & build
Product dimensions162.0 in × 68.0 in × 20.0 in
Product weight260 g

Questions about this item

Does the card ship with SFP+ transceivers or DAC cables, or must they be purchased separately?

The box includes the network card, a driver CD, a full-height bracket and a low-profile bracket. SFP+ modules, DACs or AOCs are not included and must be bought separately.

Which PCIe slot width and generation does the BCM57840 require for full 10 Gbps performance?

The controller uses a PCI Express 3.0 x8 electrical interface and fits in either an x8 or x16 slot; it is backward compatible with PCIe 2.0 and 1.1.

What maximum frame size does the adapter support on each 10 Gbps port?

Jumbo frames up to a 9 KB MTU are supported on all four SFP+ ports for Ethernet traffic.

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