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Green circuit board with dual SFP ports and silver PCIe bracket

Solar Flare

Solar Flare SFN5122F 10GbE Dual Port PCIe 2.0 x8 Network Card

SKU CH-W2G1-XS7KJ

Dual-port 10GbE SFP+ server adapter with PCIe 2.0 x8 interface for virtualized data centres

  • Rated speed1,000 Mbit/s
  • Interface typePCI-Express
  • Temperature range0 °C to 55 °C
  • Dual-port 10GbE bandwidth for high-throughput server links
  • PCIe 2.0 x8 interface fits standard server expansion slots
  • SFP+ cages accept a range of fibre or copper transceivers
  • Low power draw keeps rack density high and cooling costs down
  • Operating range 0 °C to 55 °C suits data-centre environments

Dual-Port 10GbE SFP+ Server Adapter

The Solar Flare SFN5122F is a dual-port 10GbE network interface card built for enterprise servers. It uses SFP+ transceivers and a PCI Express 2.0 x8 slot to deliver high-throughput Ethernet connectivity. The card targets virtualized data centres that need scalable I/O performance.

PCIe 2.0 x8 Bandwidth Limit

The adapter connects through a PCI Express 2.0 x8 interface which caps theoretical throughput at the lane speed of that generation. In a 2.0 slot the link cannot exceed the bandwidth defined by the 2.0 specification. Installing the card in a newer PCIe 3.0 or later slot will not raise the link speed beyond 2.0 rates.

Operating Temperature Ceiling 55°C

The card is rated for continuous operation from 0°C up to 55°C. Deployments in enclosures that exceed this ambient limit will require additional airflow or a different adapter. Buyers who need guaranteed operation above 55°C cannot use this part.

How it compares

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

Price $25.99
Cheaper than about 88% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameSolar Flare
Part numberSFN5122F
Performance
Rated speed1,000 Mbit/s
Ports & slots
Interface typePCI-Express
Environment & compliance
Temperature range0 °C to 55 °C

Questions about this item

Should I choose the single-port or dual-port version of the SFN5122F?

The SFN5122F is a dual-port adapter, providing two SFP+ connections for 10GbE links in one PCIe slot.

What does the 10GbE rating mean for actual throughput in my server?

Each port supports up to 10 gigabits per second; the PCIe 2.0 x8 host interface provides enough bandwidth to sustain line rate on both ports simultaneously.

Will the PCIe 2.0 x8 interface limit performance on a newer motherboard?

The card uses a PCI Express 2.0 x8 electrical interface, which delivers sufficient bandwidth for dual 10GbE traffic without bottlenecking the adapter.

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