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Call 1.800.463.9998 for Availability

SKU: X2522
Category: Solarflare
Manufacturer: SOLARFLARE
MSRP: $275.00
XtremeScale X2522 Family
The World’s Lowest Latency 10/25G Ethernet NIC
The Industry’s 1st Standard NIC with Hardware Security

The X2522 dual-port 10/25G Ethernet NIC is a member of the X2 family of XtremeScale products that redefine the price/performance of standard NICs for modern data centers. Designed from the ground up for virtualized dense server environments, Solarflare XtremeScale X2 adapters are the most cost-effective NICs in the industry for Ethernet connectivity. At the same time, XtremeScale acceleration provides record-breaking low latency and throughput needed for today’s modern class of applications. X2 is the most secure standard NIC with integrated hardware firewalls. XtremeScale X2 is the only general-purpose NIC with 2,048 Virtual NICs, programmable packet processing engine for network off-load and real-time packet/flow capture required by your network performance management and analytics platforms.
Stable Precision Oscillator: Stratum 3 compliant
Acceleration: •Universal Kernel Bypass
•DPDK Poll Mode Driver - Packet (Cloud, Telco)
•Onload* - TCP/UDP
•TCP Direct* - TCP/UDP
•MSI-X Support
•2x10/25G 64-byte line rate
•Interrupt Coalescing
Security: •ServerLock Local Hardware Filtering - Monitor, report, analyze, filter and enforce policies
•Tamper resistant adapter – Digitally signed firmware and secured private keys
Time Synchronization and Hardware Timestamping*: •On-board Stratum 3 compliant oscillator
•Solarflare Software PTP Daemon delivers enhanced stability and clock synchronization accuracy and can be used to synchronize the adapter clock to external time source.
Stateless Offloads: •TCP/UDP Checksum Offload (CSO)
•TCP Segmentation Offload (TSO)
•Generic Segmentation Offload (GSO)
•Large Send Offload (LSO)
•Large Receive Offload (LRO)
•Receive Side Scaling (RSS)
•Receive Segment Coalescing (RSC)
Manageability and Remote Boot: •PXE and UEFI
•Solarflare Secure Boot
•Tamper resistant Secure Firmware Upgrade
•NC-SI over MCTP SMBus
Management and Utilities: •Ethtool Support
•vCenter Plug-in
•Solarflare Boot Manager
Adapter Hardware: •PCIe Gen 3.1 x8
•25G SFP28 or 10G SFP+ direct attach copper or optical transceiver; SFP28 cages
Hardware Certifications: •FCC, UL, CE
•RoHS - Complies with EU directive 2011/65/EU
Traffic Engineering: •XtremePacket Engine for dedicated parsing, filtering, and flow steering
•TCP/UDP/IP, MAC, VLAN, RSS filtering, Accelerated Receive Flow Steering (ARFS), Transmit Packet Steering
Storage: NVMeoF-TCP Plug-in for low latency, high performance storage networking on standard Ethernet fabric
Virtualization: •Linux Multi-queue
•VMware NetQueue
•Microsoft Hyper-V Virtual Machine Queue (VMQ)
•SR-IOV: 16 physical functions, 240 virtual functions;
•2048 Guest OS protected vNICs
•Full hardware switch fabric in silicon capable of steering any flow based on Layer 2 to Layer 4 protocols, between physical and virtual interfaces.
•VXLAN, NVGRE, and GENEVE tunneling offloads; adaptable to custom overlays
•VLAN and VLAN Q-in-Q Insertion/Stripping
Ethernet Standards: •IEEE 802.3-2012 Ethernet Base Standard, including 802.3bx
•IEEE 802.3-2015 Ethernet Flow Control
•IEEE 802.3ad, 802.1AX Link Aggregation
•IEEE 802.1Q, 802.1P VLAN Tags and Priority
•IEEE 1588-2008 PTPv2
•Jumbo Frame support (9000 bytes)
OS Support: •Red Hat RHEL, SUSE SLES, Debian, Ubuntu
•Windows Server
•VMware ESXi
•For complete list of supported OS versions visit:
Physical Dimensions: •L: 16.75 cm (6.6 in)
•W: 6.9 cm (2.7 in)
•End bracket height: PCI Express standard, 12.0 cm (4.725 in)
•PCI Express low-profile: 7.92 cm (3.12 in)
Environmental Requirements: •Temperature: Operating: 0°C to 55°C (32°F to 131°F) / Storage: –40°C to 65°C (–40°F to 149°F)
•Humidity: Operating: 10% to 80% / Storage: 5% to 90%
Ordering Information: X2522-10G 10G link speed support, * features can be acquired through a separate license
X2522-10G-PLUS 10G link speed support, includes all * features
X2522 10/25G link speed support, * features can be acquired through a separate license
X2522-PLUS 10/25G link speed support, includes all * features
All Solarflare hardware products—server adapters, Application Onload Engine (AOEs) FPGAs and optical transceivers—have a limited hardware warranty. Solarflare server adapters are covered for 3 years. AOE FPGAs and optics are covered for 1 year. An extended warranty is available for server adapter products only. You can extend the server adapter 3 year warranty to 4 years (add 1 year) or 5 years (add 2 years), at the time of purchase.
Please visit for additional product information.