The Intel Ethernet 10 Gigabit Converged Network Adapter X520-SR2 enables data center transformation by delivering a reliable, unified 10GbE short range fiber optic connection. Advanced platform scalability features include: Receive Side Coalescing, Intel Ethernet Flow Director, and support for PCI Express Gen2. Intel VT-c delivers industry-leading I/O virtualization capabilities, including support for Single Route I/O virtualization (SR-IOV) and Virtual Machine Device Queues (VMDq). The Intel Ethernet Converged Network Adapter X520 provides advanced unified networking capabilities, including support for iSCSI, NFS, and FCoE.

• SFP+ connectivity
• Low-profile
• Load balancing on multiple CPUs
• ISCSI remote boot support
• Fiber Channel over Ethernet (FCoE) support
• Intel Direct Cache Access (DCA)
• MSI-X support
• Low latency interrupts
• Header splits and replication in receive
• IPsec offload
• Virtual Machine Load Balancing (VLMB)
• Watchdog timer

• Low-profile
  Enables higher bandwidth and throughput from standard and low-profile PCIe slots and servers.
• Load balancing on multiple CPUs
  Increases performance on multi-processor systems by efficiently balance CPU cores when used with Receive-Side Scaling (RSS) from Microsoft or scalable I/O on Linux.
• ISCSI remote boot support
  Provides centralized storage area network (SAN) management at a lower cost than other iSCSI solutions.
• Intel Direct Cache Access (DCA)
  Enables the adapter to pre-fetch the data from memory, avoiding cache misses and improving application response time.
• MSI-X support
  Minimizes the overhead of interrupts. Load-balancing of interrupt handling between multiple cores/CPUs.
• Low latency interrupts
  Based on the sensitivity of the incoming data, the adapter can bypass the automatic moderation of time intervals between the interrupts.
• Header splits and replication in receive
  Helps the driver focus on the relevant part of the packet without the need to parse it.
• IPsec offload
  Offloads IPsec capability onto the adapter instead of the software to significantly improve I/O throughput and CPU usage.
• Virtual Machine Load Balancing (VLMB)
  Virtual Machines Load Balancing (VMLB) provides traffic load balancing across virtual switch, port, cable, or adapter failure.
• Watchdog timer
  Gives an indication to the manageability firmware or external devices that the chip or the driver is not functioning.

Main Specifications

Product Description	Intel Ethernet Converged Network Adapter X520-SR2 - network adapter
Form Factor	Plug-in card - low profile
Manufacturer Warranty	Limited lifetime warranty
Device Type	Network adapter
Data Transfer Rate	10 Gbps
Compliant Standards	IEEE 802.3, IEEE 802.1Q, IEEE 802.3ad (LACP)
Cabling Type	Ethernet 10GBase-SR
Data Link Protocol	GigE, 10 GigE, FCoE
Network / Transport Protocol	TCP/IP, UDP/IP, IPSec, iSCSI
Interface (Bus) Type	PCI Express 2.0 x8
Ports	10GBase-SR x 2

Extended Specifications

Warranty