A module assembly (100) comprises a module body (2) with a plurality of conductive pads (210) thereof, a FPC (3) with a plurality of conductive strips (310) in one end and a metal shell (1). The shell has a planar bottom wall (11) and sidewalls (12,13,14) approximately extending from edges of the bottom wall forming a room to receive the FPC and the module body. Sidewalls define arms of two types extending therefrom. The arms (123,131,141) of first type slant into the room to retain the module body and the arms (122) of second type slant outwards and away from the room to retain the module assembly. And the module assembly is fitted into an electronic equipment (300).