An electronic device enclosure which is able to resist damage from jolts or bumping includes a frame, a limiting member located in the frame, a cover secured to the frame, a mounting bracket and a blocking member. The frame includes a side plate. The mounting bracket is adapted to receive a data storage device and includes a first sidewall and a second sidewall opposite to the first sidewall. The second sidewall is secured to the side plate. A first end of the first sidewall is rotatably received in the limiting member and located between the limiting member and the second sidewall. A second end of the first sidewall opposite to the first end is hung on the frame. The blocking member is secured to the cover and abuts the second end. The second end is located between the blocking member and the second sidewall.