An electrical card (100) includes an insulative frame (1) having a pair of detachable side bars (112) spaced from each other and a transverse bar (116) assembled onto the side bars to interconnect the side bars; a detachable upper cover (12) attached to a rear end of the frame; an upper shell (2) and a lower shell (3) mounted to an upper side and a lower side of the side bars respectively; a detachable lower cover (4) attached to the lower shell and disposed beneath the upper cover; a circuit board (5) supported by the frame and located between the frame and the upper shell; and an electrical connector (6) attached to a front end of the frame and electrically connected to the circuit board.
