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Green PCB network card with four SFP+ cages and a PCIe x8 gold-finger edge connector

Silicom

Silicom PE310G4SPI9LB-XR 10Gbps Quad Port PCIe 3.0 x8 SFP+ network card

SKU CH-GC3H-R5K4J

A 10 Gbps quad-port SFP+ network adapter using a PCIe 3.0 x8 interface for high-performance server networking

  • Rated speed1,000 Mbit/s
  • Interface typePCI-Express
  • Temperature range0 °C – 45 °C
  • Product class1000M, PCIE
  • 10 Gbps throughput for high-bandwidth server workloads
  • Quad-port SFP+ design connects four 10 GbE links
  • PCIe 3.0 x8 interface delivers full line-rate performance
  • Operating range 0 °C to 45 °C suits rack environments
  • Silicom engineering targets server and appliance integration

Quad-port 10GbE SFP+ server adapter

The Silicom PE310G4SPI9LB-XR is a quad-port 10Gbps network adapter that installs in a PCI Express 3.0 x8 slot. It presents four SFP+ cages for fibre or direct-attach copper cabling. The card is built for servers and high-end appliances where sustained 10 Gigabit Ethernet throughput is required. Operating temperature range is 0°C to 45°C.

Suited for multi-link 10GbE server deployments

This adapter fits administrators adding four 10GbE links to a server or appliance that has a free x8 slot and SFP+ transceivers on hand. It is not for builds that need only a single 10GbE port or that rely on onboard RJ45 10GBASE-T connectivity. Buyers without an x8 electrical slot or without SFP+ modules and cabling should look at other options.

PCIe 3.0 x8 electrical interface

The decisive specification is the PCI Express 3.0 x8 host interface; the card requires a slot that can deliver eight lanes of third-generation PCIe bandwidth. If the target system provides only x4 or x1 electrical connections, the adapter will not operate at its rated 10Gbps per port. Confirm the slot width before purchase.

How it compares

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

Price $41.99
Cheaper than about 73% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameSilicom
Part numberPE310G4SPI9 lb-XR
Product class1000M, PCIE
Performance
Rated speed1,000 Mbit/s
Ports & slots
Interface typePCI-Express
Environment & compliance
Temperature range0 °C – 45 °C

Questions about this item

Does my motherboard need a PCI Express 3.0 x8 slot for the PE310G4SPI9LB-XR to operate?

Yes, the adapter requires a PCI Express 3.0 x8 slot to deliver its 10Gbps quad-port performance.

Will the four SFP+ ports negotiate down to 1000Mbps if I connect older 1GbE switches?

The card supports a 1000M class, so each SFP+ port can link at 1000Mbps with compatible 1GbE transceivers and cabling.

How can I verify the adapter is running correctly after installation?

Confirm the device appears in the OS network list, all four ports show link at the expected speed, and the card temperature stays within 0°C – 45°C under load.

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