This is a TV tuner, to connect coax cable to your computer. 7/8" long x 9/16"wide x 1 1/8" high (including coax). It has one screw hole off-set to the side and centered on the other side. It is new and has never been used. It was originally bulk packaged for OEM distribution and we have repackaged it into individual bags. It comes as pictured and does not include any additional parts or accessories.