The new Flareon™ Ultra SFN8000 adapter family provides Solarflare’s best performance yet, with higher bandwidth, lower latency and higher packet rate. The SFN8000 family adapters are based on a common hardware platform, enabling customers to configure the features and performance they want to meet the particular needs of each application.

Capabilities such as ultra-low latency, Onload kernel bypass, class leading clock synchronization accuracy providing MIFID II readiness, SolarSecure Filter Engine, SolarCapture and more can be enabled to run on any SFN8000 adapter on the network, making this the one Ethernet adapter to deploy across your data center or cloud infrastructure.


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Model Number

Flareon Ultra SFN8542 & SFN8542 PLUS

Stable Precision Oscillator

Stratum 3 compliant

I/O Virtualization

2048 guest OS protected vNICs; SR-IOV; 240 virtual functions; 16 physical functions

PCI Express

PCIe 3.1 x16 @ 8.0 GT/s

SFC9140 10/40G Ethernet Controller

Supports high-performance - 40GbE and 10GbE

QSFP+ Support

Supports optical QSFP+ modules including Solarflare SFM40G-SR4, Direct-Attach Copper, Solarflare QSFP+ to SFP+ copper DAC cables (SOLR-QSFP2SFP-1M & -3M)

Low Latency

Cut-through architecture/intelligent interrupt coalescing

Packet Rate

60Mpps TX & RX sustained line rate with all packet sizes

Receive Side Scaling (RSS)

Distributes IPv4, IPv6 loads across all CPU cores; MSI-X minimizes interrupt overhead

Hardware Offloads

TSO, LRO, GSO; IPv4/IPv6; TCP, UDP checksums

IP Flow Filtering

Hardware directs packets based on IP, TCP, UDP headers

Advanced Packet Filtering

4096 multicast filters; 4096 VLANs/port; adaptive TCP/UDP/IP, MAC, VLAN, RSS, RFS filtering; Accelerated RFS e

Remote Boot

PXE; unattended installation; UEFI; Solarflare Secure Boot



Switching Support

Integrated Layer 2 Ethernet switch, VEB/ Virtual switch

Virtualization Support

VMware ESXi; Microsoft Hyper-V; Linux KVM and Xen

Operating Systems

RHEL 5, 6, 7, MRG; SLES 10, 11, 12, SLERT; Debian 6.0, 7.0; Ubuntu 12.04 LTS, 14.04 LTS, 14.10; other Linux; Windows Server 2008 R2, 2012, 2012 R2; XenServer 6.2, 6.5

Physical Dimensions

  • L: 16.75 cm (6.6 in)
  • W: 6.9 cm (2.7 in)

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