USB stick (1) of the type which mainly consists of a housing (2) with a memory and a USB plug (3) protruding from an edge of the housing (2) and a cap (4) which can be provided over the USB plug (3) with an open side so as to protect the latter, characterised in that the USB stick (1) is provided with means which connect the housing (2) and the cap (4), in the open as well as in the closed position.