A storage device has two connectors for transferring data files: a first connector through which data files can be transferred at an accelerated speed, and a second connector through which data files can be transferred at a conventional speed. According to the present disclosure a user can select the speed (i.e., "normal speed" or "accelerated speed") at which s/he wants to transfer a data file from a host to the storage device, and vice versa, by connecting the host to the proper connector of the storage device. The first connector is internally connected to a plurality of controllers that facilitate data transfers at the accelerated speed, and the second connector is internally connected to a controller that facilitates data transfers at the normal speed.