Product overview

The XpressGX5-LPA4QE-Gen3 is a low-profile FPGA computing card that features 8x10Gb Ethernet/optical links and PCI Express 3.0. Engineered to accelerate networking and financial applications, the platform provides the performance, configurability, and ultra-low latency required for network monitoring, filtering and real-time streaming data processing.

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Benefits & features

  • Highly integrated, production optimized COTS board reduces time-to-market and risk
  • Low Profile half height PCI Express card integrates into any computing platform, including 1U rackmount servers.
  • Direct-attached 8 x 10G Ethernet coupled with PLDA's full hardware TCP stack IP (TOE) and UDP stack IP (UOE) allows ultra-low wire-to-fabric latency.
  • Advanced power management enables single power supply through PCIe slot connector

Tech spec

Form Factor

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

FPGA processing

  • 5SGXEA4K2F40C2N 28-nm FPGA
  • 420000 Logic Elements
  • 634000 registers
  • 512 18x18 multipliers
  • 256 27x27 DSP blocks

DDR3 SDRAM memory

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

Non-volatile memory

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

Clock sources (MHz)

  • 50, 100, 200, 644.53125 or I2C PLL output

Host interface

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

Backplate interface

Two QSFP+ interfaces which use FPGA transceivers allowing 8 x 10Gbs links:

  • Up to 8 1G/10G Ethernet or any high-speed link via QSF+ to SFP+ splitter cable
  • Or up to two 40Gbs links
  • Other protocols as supported by the QSFP+ modules

PPS interface

  • Allows time stamping over micro BNC

General purpose I/Os

  • 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-blaster)
  • 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: 35W Typical / 50W typical/max
  • A4: 30W/40W typical/max.


  • Power / voltage monitoring
  • Temperature monitoring


  • Single-width active heatsink (embedded fan) standard
  • Passive heatsink optional


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


Deliverables :

  • XpressGX5-LPA4QE-Gen3 board
  • Full and half height brackets
  • 1 year warranty on hardware

Ordering information

XpressGX5-LPA4QE-Gen3 : PCIe 3.0, Altera Stratix®V GX, EA4K2F40C2N

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