A mounting apparatus includes a frame and a fastener made of conducting material. The frame includes opposite first and second fixing arms, and an end arm connected between the first and second fixing arms. The first fixing arm is pivotably connected to the end arm. Two pins protrude from an inner side of each of the first and second fixing arms, for correspondingly engaging in fixing holes of a storage device. The fastener is fixed to one of the first and second fixing arms. The fastener includes a head exposed out of the one of the first and second fixing arms, and a post-shaped engaging portion inserted into a threaded hole of the storage device and contacting a threaded portion of the threaded hole of the storage device. The fastener is capable of connecting the storage device to ground.