An open source MXM to PCIe adapter card

Mobile PCI Express Module (MXM) is an interconnect standard for GPUs (MXM Graphics Modules) in laptops using PCI Express created by MXM-SIG. The goal was to create a non-proprietary, industry standard socket, so one could easily upgrade the graphics processor in a laptop, without having to buy a whole new system or relying on proprietary vendor upgrades.

The connector provides a wealth of computer resources but they are difficult to access and find documentation for.

GitHub user WifiCable (a-little-wifi) has developed an MXM to PCIe breakout card. This would allow for an MXM graphics card to go into a desktop computer and more.

The care exposes everything MXM has to offer

  • 6 Displayport outputs
  • DP++ support for passive HDMI dongles
  • VGA output
  • Dual channel LVDS output
  • Full PCIe x16 link
  • Up to 190W of power
  • Clevo extra MXM power cable support
  • OEM pins
  • Reserved pins
  • Power control pins
  • JTAG header
  • Fan header with PWM

You can find all the files in the project GitHub repo.


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