Intel® Ethernet Converged Network Adapter X520-DA1


  • Product Collection Intel® Ethernet Server Adapter X520
  • Marketing Status Launched
  • Launch Date Q2'11
  • Vertical Segment Server
  • Cable Medium Copper
  • Cabling Type SFP+ Direct Attach; Twin Axial Cabling up to 10 m
  • Bracket Height Low Profile and Full Height

Networking Specifications

  • Port Configuration Single
  • Data Rate Per Port 1GbE / 10GbE
  • Intel® Virtualization Technology for Connectivity (VT-c) Yes
  • Speed & Slot Width 5.0 GT/s, x8 Lane
  • Controller Intel 82599

Package Specifications

  • System Interface Type PCIe v2.0 (5.0 GT/s)

Intel® Virtualization Technology for Connectivity

Advanced Technologies

Compatible Products

Intel® Server System R1000BB Family

All | None

Intel® Server System R2000GL Family

All | None

Intel® Server System R2000GZ Family

Product Name Launch Date Marketing Status Board Form Factor Chassis Form Factor Socket Sort Order Compare
All | None
Intel® Server System R2308GZ4GC Q1'12 Discontinued Custom 16.5" x 16.5" 2U Rack Socket R 66535
Intel® Server System R2308GZ4GS9 Q4'12 Discontinued Custom 16.5" x 16.5" 2U Rack Socket R 66538
Intel® Server System R2312GZ4GC4 Q2'12 Discontinued Custom 16.5" x 16.5" 2U Rack Socket R 66540

Drivers and Software

Latest Drivers & Software

Downloads Available:



Launch Date

The date the product was first introduced.

Flexible Port Partitioning

Flexible Port Partitioning (FPP) technology utilizes industry standard PCI SIG SR-IOV to efficiently divide your physical Ethernet device into multiple virtual devices, providing Quality of Service by ensuring each process is assigned to a Virtual Function and is provided a fair share of the bandwidth.

Virtual Machine Device Queues (VMDq)

Virtual Machine Device Queues (VMDq) is a technology designed to offload some of the switching done in the VMM (Virtual Machine Monitor) to networking hardware specifically designed for this function. VMDq drastically reduces overhead associated with I/O switching in the VMM which greatly improves throughput and overall system performance


Single-Root I/O Virtualization (SR-IOV) involves natively (directly) sharing a single I/O resource between multiple virtual machines. SR-IOV provides a mechanism by which a Single Root Function (for example a single Ethernet Port) can appear to be multiple separate physical devices.


iWARP delivers converged, low-latency fabric services to data centers through Remote Direct Memory Access (RDMA) over Ethernet. The key iWARP components that deliver low-latency are Kernel Bypass, Direct Data Placement, and Transport Acceleration.

Intel® Ethernet Power Management

Intel® Ethernet Power Management Technology provides solutions to common power management approaches by reducing idle power, reducing capacity and power as a function of demand, operating at maximum energy efficiency whenever possible, and enabling functionality only when needed.

Intel® Data Direct I/O Technology

Intel® Data Direct I/O Technology is a platform technology that improves I/O data processing efficiency for data delivery and data consumption from I/O devices. With Intel DDIO, Intel® Server Adapters and controllers talk directly to the processor cache without a detour via system memory, reducing latency, increasing system I/O bandwidth, and reducing power consumption.