This is the USB digital TV tuner that instantly receives and records local high-definition television broadcasts. It plugs into a USB port on a computer and connects to an included antenna with a 4' 11" cord. It uses the same ATSC tuner found in full-sized HDTVs and supports up to 1920 x 1080 resolution. Includes software that allows you to schedule and record content as MPEG4 files. Works with Windows Vista, and XP SP2 (not compatible with 64-bit systems). With digital broadcasts, a weak signal will result in no picture. Includes remote. 3 1/2" L x 1" D. (3 oz.)