The Mobile PCI Express Module (MXM) is a standard graphics interface for PCI Express systems.
This technical brief document summarizes the MXM version 3.0 specifications as well as highlighting
the benefits of MXM version 3.0.
MXM is the ideal low power, small form factor, and high performance graphics adapter solution. Typical
applications include notebook computers, blade and standard rack mount servers, mobile workstations
and alternative form factor PCs including all-in-one, home theater and small form factor PCs.
FORM FACTOR PC
Figure 1: MXM Applications
MXM version 3.0 builds upon the experience gained from several years of implementation of previous
versions of the MXM standard. MXM version 3.0, while physically very similar to the previous MXM
standards, is not backwards compatible mechanically or electrically. Therefore, an MXM version 3.0
system does not support earlier MXM standard modules nor will previous standard modules work in
an MXM version 3.0 system. Support for many leading technologies (PCI-Express Gen2, DisplayPort,
etc.) and the desire to make it easier for system designers to implement MXM version 3.0 solutions
forced this radical departure from previous MXM standards. MXM version 3.0 provides the path for
systems to be more cost effective, thinner, more flexible, easier to manufacture, and more feature rich
than previous MXM versions.