Intel X520-SR2 10Gbps 2Port PCIe 2.0 x8 Wired Ethernet Network Adapter

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Intel X520-SR2 10Gbps 2Port PCIe 2.0 x8 Wired Ethernet Network Adapter

The Intel X520-SR2 comparable 10-Gigabit Ethernet PCIe x8 network interface card with 1 included SR SFP+ that complies with IEEE 802.3 standards. It is based on an Intel 82599 chipset and is compatible with Windows and Unix-like operating systems. Providing 10Gbs of network speed, it fully supports high-end servers and a variety of networking applications. In addition, this card supports high level VLAN filtering. The single open SFP+ port allows users to choose from a range of SFP+ transceivers to accommodate multi-mode (MMF) and single-mode (SMF) fiber, granting customizable reach. This Low Profile wired Network Adapter uses the PCI Express 2.0 interface and has 1 Year Warranty from us.


Brand: Intel
Model: X520-SR2
MPN: X520-SR2


Device Type: Network Adapter
Form Factor: Plug-In Card - Low Profile
Interface (Bus) Type: PCI Express 2.0 X 8


Ports: 10GBase-SR
Connectivity Technology: Wired
Cabling Type: Ethernet 10GBase-SR
Data Link Protocol: GigE, 10 GigE, FCoE
Data Transfer Rate: 10 Gbps
Network / Transport Protocol: TCP/IP, UDP/IP, IPSec, iSCSI
Remote Management Protocol: SNMP, RMON
Status Indicators: Link activity, port transmission speed
Features: Load balancing, VLAN support, Virtual Machine Device Queues (VMDq)
Compliant Standards: IEEE 802.3, IEEE 802.1Q, IEEE 802.3ad (LACP), IEEE 802.1ae, IEEE 802.1as

Processor / Memory

Processor: 82599ES - Intel

Expansion / Connectivity

Interfaces: 1 x 10GBASE-SR - LC multi-mode x 2
Compatible Slots: 1 x PCI Express 2.0 x8

Software / System Requirements

OS Required: Microsoft Windows 7, Linux 2.6.x, SuSE Linux Enterprise Server 11, Microsoft Windows Server 2008 SP2, Microsoft Windows Vista SP2, SuSE Linux Enterprise Server 10, Microsoft Windows Server 2003 R2, Red Hat Enterprise Linux 5, Microsoft Windows Server 2003 SP2, Red Hat Enterprise Linux 6, VMware ESXi, Windows 8, Microsoft Windows Server 2012, VMware ESX, Linux 3.x, FreeBSD 9

Environmental Parameters

Min Operating Temperature: 32 °F
Max Operating Temperature: 131 °F


Compliant Standards: FCC Class B certified, UL, VCCI, C-Tick, BSMI, RoHS

Product Features

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.

Contact us if you have any question about this product to verify this model’s compatibility with your current server or storage array.

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Warranty Information

1 Year Warranty
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