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Dell Solarflare SFN8522 dual-port 10Gbps PCIe 3.1 x8 network card

DELL

DELL Solarflare SFN8522 10Gb PCI-E 3.1 x8 Network Card

SKU CH-RS7B-8DVVR

Dual-port 10Gbps Ethernet adapter using a PCI-Express 3.1 x8 interface for server connectivity

  • Rated speed10 Gbit/s
  • Interface typePCI-Express
  • Dual-port 10Gbps throughput for high-bandwidth server workloads
  • PCI Express 3.1 x8 interface fits modern server platforms
  • Solarflare Flareon architecture optimises low-latency packet processing
  • Dell NG4VX part ensures validated hardware compatibility
  • Two 10GbE ports consolidate networking in a single slot

Dual-port 10Gbps server adapter

The Dell Solarflare SFN8522 is a dual-port Ethernet server adapter built for 10Gbps networking. It fits servers or workstations that need two high-speed wired connections in a single expansion slot. The card targets environments where throughput and low latency matter more than consumer features. It is not suited for desktop users who only need a single 1GbE link.

PCI Express 3.1 x8 interface limits

The adapter uses a PCI Express 3.1 x8 electrical interface, so the host slot must supply at least eight lanes at Gen 3 speeds to reach the rated 10Gbps per port. A narrower slot or an older generation will reduce available bandwidth and may prevent both ports from operating at line rate. Systems limited to PCIe 2.0 or x4 wiring cannot deliver full performance.

Part number NG4VX identifies the card

The Dell part number NG4VX is the single identifier that confirms you have the exact SFN8522 model with dual 10Gbps ports and PCIe 3.1 x8 connectivity. Verifying this number against your server vendor’s compatibility list ensures the adapter is supported and will function as intended. A different part number indicates a different specification.

How it compares

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

Price $33.99
Cheaper than about 80% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameDell
Part numberNG4VX
Performance
Rated speed10 Gbit/s
Ports & slots
Interface typePCI-Express

Questions about this item

Should I pick the dual-port SFN8522 or a single-port 10Gb card?

The SFN8522 provides two 10Gbps ports on one PCIe 3.1 x8 slot, so you get double the throughput without using a second slot.

What does the 10Gbps rating mean for actual server traffic?

Each port can move up to 10 gigabits per second of Ethernet traffic, giving high-throughput, low-latency connectivity for storage or compute clusters.

Will the PCIe 3.1 x8 interface limit the 10Gbps speed?

PCIe 3.1 x8 supplies far more bandwidth than two 10Gbps Ethernet links need, so the interface does not cap the adapter’s performance.

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