Abstract: An electronic device includes at least one cover, a shell removably coupled to the cover, a circuit board, a support member, and a plurality of connectors. The circuit board is received between the cover and the shell, and a plurality of groups signal terminals are mounted on the circuit board. The support member is mounted on the circuit board and coupled to the cover, and the support member defines a slanted portion. The plurality of connectors are located on the slanted portion and include a plurality of first type connectors and a plurality of second type connectors coupled to the corresponding plurality of the groups of signal terminals through the support member and positioned in a proper order. When the cover is detached from the shell, the plurality of first type connectors and second type connectors slide down along the slanted portion, fall off the slanted portion and become mixed up. An unauthorized user might not be able to replace them in the proper order and therefor tampering may be prevented.

Abstract: A connecting structure includes a ball joint bracket and a component bracket. The ball joint bracket includes a ball joint and the component bracket includes a housing space. The ball joint is rotatably received in the housing space, at least one protrusion is located on a selection one of an inner wall of the housing space and a surface of the ball joint. And at least one groove is located on the remaining one of the inner wall of the housing space and the surface of the ball joint, the at least one protrusion is slidably limited in the at least one groove.