The Mellanox Innova™ Flex 4 Lx EN adapter can be used to accelerate security applications, Deep Packet Inspection, Compression/Decompression and many other functions that require data acceleration engines to improve performance in modern data centres, private and public clouds, Web 2.0 infrastructures, telecommunications, and high-performance computing applications.

The Innova Flex 4 Lx EN adapter natively offers industry-leading technologies, such as hardware support for RDMA over Converged Ethernet, Ethernet stateless offload engines, Overlay Networks, and GPUDirect®. The addition of the FPGA on board provides users with maximum flexibility to offload CPU utilization by migrating portions of their data processing logic to the FPGA.



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Model Number

Mellanox Innova Flex 4 Lx EN

Ethernet Controller

ConnectX-4 Lx EN

Application Accelerator FPGA

Xilinx Kintex® UltraScale™ XCKU060

On-Board Memory

2GByte DDR4-160

Maximum Power Consumption

30W with XCKU060


  • IEEE Std 802.3ae 10 Gigabit Ethernet
  • IEEE Std 802.3ba 40 Gigabit Ethernet
  • IEEE Std 802.3ad Link Aggregation
  • IEEE Std 802.1Q, .1P VLAN tags and priority
  • IEEE Std 802.1Qau Congestion Notification
  • IEEE Std 802.1Qbg
  • IEEE P802.1Qaz D0.2 ETS
  • IEEE P802.1Qbb D1.0 Priority-based Flow Control
  • IEEE 1588v2
  • Jumbo frame support (9600B)

PCI Express Interface

  • PCIe Gen 3.0 compliant, 1.1 and 2.0 compatible
  • 2.5, 5.0, or 8.0GT/s link rate x8
  • Auto-negotiates to x8, x4, x2, or x1
  • Support for MSI/MSI-X mechanisms


  • Interoperable with 10/40Gb Ethernet switches
  • Passive copper cable with ESD protection
  • Powered connectors for optical and active cable support

Operating Systems/Distributions

  • RHEL/CentOS
  • Windows
  • FreeBSD
  • VMware
  • OpenFabrics Enterprise Distribution (OFED
  • OpenFabrics Windows Distribution (WinOF-2)

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