The instant disclosure relates to a memory module comprising a PCB and a detachable assembly. The PCB has a terminal portion and a free portion away from the terminal portion. The detachable assembly includes a plurality of metal members disposed on the free portion of the PCB. Thereby, user can averagely force the metal members to install or detach the memory module from a memory slot of a computer system to prevent the interference of outer ESD to affect the normal function of PCB.