A fixing assembly for fixing a peripheral device having a positioning member is provided. The fixing assembly includes a bracket and a latching mechanism. The bracket is configured for accommodating the peripheral device. The latching mechanism is configured for fixing the peripheral device to the bracket. The bracket defines a guiding slot. The positioning member is slidable along the guiding slot. The latching mechanism includes a base and a latching portion slidably coupled to the base. The base is fixed to the bracket. The base defines a sliding slot corresponding to the guiding slot. The latching portion is slidably received in the sliding slot. When the peripheral device is inserted into the bracket at a predetermined position, the latching portion cooperates with the positioning member to fix the peripheral device to the bracket.