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Solarflare SFN6122F Dual-Port 10GbE SFP+ Onload Server Adaptor

Delivers the industry’s lowest latency at high message rates to customers with leading edge financial services and enterprise data center deployments.

Solarflare® SFN6122F dual-port 10G Ethernet SFP+ Onload server adapter delivers unmatched message rates with low latency and jitter over standard Ethernet along with the lowest CPU utilization and power consumption, enabling the industry’s best performance and scalability for financial services and other enterprise data centers.


SFN6122F is designed to address issues facing data center managers today. Equipped to handle increasing application loads of the latest multi-core processors, it delivers superior throughput and low latency, with minimal CPU load for the consolidation and deployment of high-density servers. The SFN6122F supports data networking with concurrent support of iSCSI and NAS traffic – while remaining true to the need for cost effective, power-efficient and high-performance network I/O.


  • Industry-leading latency at highest message rates
  • With two 10GbE ports 40 Gbps of full, bidirectional line rate throughput is delivered to critical applications
  • Offloads for compute-intensive tasks insures minimum burden is placed on the server CPU
  • Supports Solarflare OpenOnload®, unique application acceleration middleware, providing direct sockets connection to applications
Part No. SFN6122F
End of Life? Yes
Succeeded By SFN7122F
Specification Cut-through architecture/intelligent interrupt coalescing.
Compliant Standards IEEE 802.3ae; IEEE 802.3ad; IEEE 802.1Q; IEEE 802.1p; IEEE 802.3x; RoHS Compliant
Bandwidth 5.0 GT/s, 40 Gbps
Channels Supports optical & copper SFP/SFP+ modules; Direct-Attach, Fiber (10G or 1G), 1G/10G combo, 1000BASE-T SFP. Supports 1G 1000BASE-T SFP modules; Supports high-performance 10GbE.
Hardware Offloads LSO, LRO, GSO; IPv4/IPv6; TCP, UDP checksums
Host OS Support RHEL 5, 6; MRG; SLES 10, 11; SLERT; other Linux; Windows Server 2003, 2008, 2008R2; OS X v10.6.x, v10.7; Solaris 10 (x86)
Supported Software ESX 3.5, vSphere 4.x, 5.0; Hyper-V; XenServer 5.6, 6.0; KVM; NetQueue; VMQ; SR-IOV
PCI Slot(s) PCIe Gen 2.0 compliant @ 5.0 GT/s for full, 40 Gbps bi-directional bandwidth