Product overview

The XpressGX5LPA7SE-Gen3 board is a low-profile PCIe add-in card engineered for low-latency, high performance network computing. Based on an Intel® Stratix® V GX FPGA, the card features 20Gbit of direct-attached Ethernet connectivity, a PCIe Gen3 x8 host interface, and abundant memory resources including DDR3 SDRAM and QDR2+ SRAM (SIO).

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Benefits & features

  • Low-profile PCI Express form factor, integrates into any server box including 1U rackmount servers
  • Pre-verified PCI Express® Gen 3 x8 enables high bandwidth to server memory
  • Highly integrated, production optimized COTS board reduces time-to-market and risk
  • PCIe®-based FPGA configuration enables remote firmware updates and supports
  • No external power supply required

Tech spec

Form Factor

  • Low Profile PCIe
  • Half height, half length
  • Single slot width
  • 6.59 x 2.71 inches

FPGA processing

  • EP5SGXEA7K2F40C2 28-nm FPGA, compatible with EP5SGXEA7622000 Logic Elements
  • 938880 registers
  • 7145 KB internal memory
  • 512 18x18 multipliers
  • 256 27x27 DSP blocks

DDR3 SDRAM memory

  • 2 banks, 72-bit
  • 2 x 4GB @ 1600 MT/s


  • 2 banks, 18-bit, SIO
  • 2 x 18MB @ 800MT/s

Non-volatile memory

  • 512MB NOR Flash (32-bit)
  • 2x1KB I2C EEPROM

Clock sources (MHz)

  • 25, 50, 100, 125, 200, 644.53125

Board to Board interface

  • 4 GTH transceiver pairs
  • I2C bus plus 3 LVCMOS I/Os

Host interface

  • Physical: PCI Express 3.0 x 8 (8-lane)
  • Logical: x1, x2, x4, x8 at Gen3, Gen2, Gen1 speed.

Backplate interface

Two SFP+ interfaces which use FPGA transceivers allowing:

  • Optical 1G/10G interface

Transceivers reference clock are fed by 644,53125 MHz LVDS oscillator

Each SFP+ interface has its own dual Tricolor LED on the front bracket for Ethernet link display + others

Time stamping interface

  • IEEE-1588 PTP over RJ45 through National DP83640

General purpose I/Os

  • 2x3 LED on front panel bracket
  • 8 x user LEDs
  • 4 x FPGA configuration LEDs
  • 1 x reset button
  • 1 x FPGA configuration reload button
  • 1 x FPGA image boot selector
  • 3 x user switches

Quality and compliance

  • ISO9001 production facility
  • IEC 60950-1 / CB scheme

FPGA configuration

  • JTAG (USB cable)
  • CPLD & Flash Engine
  • Support for 2 bitstreams
  • Bitstream updates via Host software through PCIe
  • Golden bitstream recovery
  • FPGA partial configuration via host (PRC)
  • Auto recovery from bad user bitstream

Electrical and power

  • Power derived from PCIe slot 3.3V and 12V
  • A7: 30W Typical / max 50W.

Low Latency

  • Measured 200ns 10GbE wire to FPGA fabric through optional 10G Ethernet MAC and 10G TCP hardware stack


  • Active cooling with low profile heatsink + fan


  • Cooling: Air convection
  • Operating temperature: 0°C to 70°C
  • Storage temperature: -20°C to 80°C
  • Relative humidity: 45 to 95% (non-condensing)



  • Low-profile (half-height) form factor PCIe Board
  • 1 year warranty on hardware

Ordering information

  • XpressGX5-LPA7SE-Gen3                     //               Intel® Stratix®V GX, EA7K2F40C2N

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