PCI Express Expansion Link Kit

Part # PEX8G2-LINK-C1 / PEX8G2-LINK-C3

The PCIe x8 Gen 2 Expansion Link Kit is the perfect solution for creating a super-fast local PCIe connection from a host computer to a target PCI Express device. This expansion link kit allows the extension of the PCI Express signals from a host server to an external expansion backplane or chassis. The Magma 01-04978-03 interface card installs into any x8 or x16 PCIe slot in the host computer motherboard and a second Magma 01-04978-03 interface card can be inserted into any upstream PCIe slot. A high-speed iPass cable allows data transfers to and from the host computer at 40Gbps.

Onboard Visual Diagnostic Features

Multiple LEDs and dip switches make debugging and troubleshooting easy. Visible LEDs show the PCIe link width that each PCIe interface card is operating. Other LEDs for “Loss of Lock,” “Reset ON” and “Clock Good” are useful visual indicators for troubleshooting and verifying the connection without expensive software diagnostic tools.

Use Case – Test Multiple Solid State Drives (SSD) Simultaneously

A test fixture can be created that connects a SuperMicro server to an 8 slot PCIe expansion backplane. With the server you can connect eight test fixtures and therefore can test sixteen solid state drives simultaneously. The server runs a routine to test each card in sequence and either accepts or rejects it. The PCI Express Expansion Link Kit is used to connect the test fixture to the server at 40Gbps.


  • High-speed x8 PCI Express connection
  • Low profile bracket provides for easy installation in low profile computers
  • Easily visible LEDs indicate correct installation and PCIe link width
  • Low power consumption – less than 4 Watts
  • LEDs show status of connection for quick debug- reset indicator, clock indicator, link width indicator
  • Supports Spread Spectrum Clocking, LOS (Loss of Signal), LOL (Loss of Lock Indicator)
  • Low Latency and Low Jitter


  • Transparent extension of PCI Express signals outside the computer
  • No software required – connection is automatically recognized and configured by system BIOS
  • Attach large power hungry PCI Express cards to computer with limited card space
  • Low latency PCIe connection between host and target without using bridges or switches
  • Same PCIe card used for both the host and expansion device
  • Link kit can be used with any PCIe compliant expansion chassis – Magma or non-Magma brand
  • Automated x1, x4 and x8 link negotiation for PCI Express Gen1 and Gen2
  • Ability to override automatic PCIe link training through dip-switch settings

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PCI Express Expansion Link Kit Specifications

PEX8G2-LINK-C1 PCIe x8 Gen2 Expansion Link Kit with 1m cable
PEX8G2-LINK-C3 PCIe x8 Gen2 Expansion Link Kit with 3m cable
PCIe Link Cards
  • Form Factor: x8 PCIe, low-profile, half-length
  • LED Indicators: PCIe link width, reset, clock
  • PCI Express Specification Rev 2.1
Cable 1-meter or 3-meter lengths
Interconnect Bandwidth 40Gbps (PCI Express Gen2)
Physical Characteristics
Length 139.7mm (5.5 inches)
Width 12.7mm (0.5 inches)
Height 69.9mm (2.75 inches)
Hardware Requirements PCIe x8, x16 Slot
Power Requirements 1.2A @ +3.3V maximum
3.96 Watts
Gen 1 1200W PSU
Gen 2 600 ps
Gen 1 2.5 Gbps, 4 lane equalization, reduced total jitter
Gen 2 5.0 Gbps, 4 lane Equalization, de-emphasis and reduced total jitter to further improve the channel
Operating Temperature -20º to 75º C
Storage Temperature -40º to 100º C
Operating Humidity 10% to 90% non-condensing
  900,000+ Hours
Regulatory Compliance
FCC Class B Verified
RoHS Compliant
Supported Operating Systems
  • Windows
  • Mac OS X
  • Linux
  • Solaris
30 day money back guarantee
1 year return to factory
Package Contents
  • x8 iPass connector
  • Jumpers for configuration
  • Status LEDs
Hardware Included
  • x8 iPass cable

PCI Express Expansion Link Kit Docs and Drivers

Looking for more information to download or print? Product drivers? Below you will find everything from data sheets to warranties. If you still cannot find what you are looking for, please contact Magma directly and we will assist you.


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