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

Silicom

Silicom PE310G4SPI9L-XR-CX3 10Gbps Quad Port PCIe 3.0 x8 SFP+ network card

SKU CH-95FQ-TQK3N

Quad-port 10 Gbps SFP+ network adapter using a PCIe 3.0 x8 slot for server integration

  • Rated speed10 Gbit/s
  • Interface typePCI-Express
  • 10 Gbps throughput for high-speed server networking
  • Quad SFP+ ports enable four concurrent 10G links
  • PCIe 3.0 x8 interface matches modern server slots
  • Silicom engineering targets appliance and server workloads
  • Part PE310G4SPI9L-XR-CX3 identifies the exact adapter

Quad-port 10Gbps SFP+ adapter for servers

This Silicom network card adds four 10Gbps SFP+ ports through a single PCI Express 3.0 x8 slot. It targets servers and high-end appliances that need multiple high-speed Ethernet links without using extra expansion slots.

PCIe 3.0 x8 lane requirement

The card needs a physical and electrical PCI Express 3.0 x8 connection to deliver full 10Gbps throughput on all four ports simultaneously. A slot wired for fewer lanes will limit aggregate bandwidth and may prevent the adapter from initialising correctly.

Standard half-height bracket install

Installation follows normal server-adapter procedure: power down, insert into a compatible x8 slot, secure the bracket, then attach SFP+ transceivers and cables. The most common issue is inserting the card into an x4 or x1 slot, which reduces available bandwidth and can cause link negotiation failures.

How it compares

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

Price $45.99
Cheaper than about 69% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameSilicom
Part numberPE310G4SPI9L-XR-CX3
Performance
Rated speed10 Gbit/s
Ports & slots
Interface typePCI-Express

Questions about this item

What does the 10 Gbps rating mean when the card is installed in a server?

Each SFP+ port delivers up to 10 Gbps of Ethernet bandwidth, so the adapter provides four independent 10 Gbps connections for high-throughput networking.

What does the PCIe 3.0 x8 interface limit in practice?

The PCIe 3.0 x8 slot supplies enough lane bandwidth to run all four 10 Gbps ports at line rate without host-bus saturation.

What slot and bracket space does the PE310G4SPI9L-XR-CX3 need to fit?

It requires a PCIe x8 or wider slot and a standard full-height bracket opening for the four SFP+ cages.

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