The utility model relates to computer field especially based on MXM's host module. Include: MXM CPU module, MXM connector, MXM carrier board, fastening device, the MXM CPU module edge is made with MXM standard gold finger interface, the MXM connector is fixed in the edge of MXM carrier board through
welding mode, fastening device with MXM CPU module is fixed on MXM carrier board, MXM CPU module is inserted with MXM connector through MXM standard gold finger interface, realizes
signal transmission. The utility model makes full use of the characteristic that MXM provides convenient replacement MXM CPU module, provides maximum flexibility, shortens
project cycle as far as possible, reduces design product difficulty, saves project cost, and the device structure is simple, convenient operation has certain practicality.