A connector includes a base, at least one first terminal, an upper cover, and a sliding structure. The base includes two opposite sides for defining the receiving space. The first terminal includes a contact end and a fixed end, wherein the contact end is disposed in the receiving space and the fixed end extends outside the receiving space. The upper cover includes two opposite edges. The sliding structure is disposed on the two opposite sides of the base that correspond to the two opposite edges of the upper cover. In this sliding structure, the two opposite edges are able to slide along the two opposite sides.