A 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. However, current MXM specification does not support Hot-Plug insertion.
Uniwill, the supplier of the Fujitsu-Siemens Amilo series of notebooks has been one of the biggest adopters of MXM technology but has reportedly announced not to use MXM technology for their Santa Rosa platforms. MSI has announced a full lineup of DX10 MXM cards for their new Santa Rosa lineup. Asus is continuing to use MXM cards in their new C90 series. Arima, ODM for some Alienware and other `boutique` sellers, uses cards that are MXM compliant but who differ slightly on the mechanical front.
