Hi-Speed USB 2.0 cable - Male A to Male A, Version 2.0 (15 ft black)

This is a USB A-to-B cable. It is most commonly used to connect external devices to your computer such as printers or hard drives. The A side is the rectangular side that fits in the back of your computer. The B side is the more square side which connects to your device. To use this cable, simply plug the B side into your device and connect the A to your computer. USB is plug-and-play, which means the device should be recognized as soon as you plug it in.