Want to hook up your computer to your TV but your TV is without a VGA input Then LKV2000 is your solution. LKV2000 converts PC VGA to composite (Yellow RCA) and/or S-video TV display signal. It is with a VGA pass through so that you can keep your computer monitor connected while sending a signal to the TV. All outputs are loopthrough, display simultaneously. It is with fine tuning control to adjust the picture to your preference. It draws power from an available USB port using a supplied USB power cable. No external power supply is needed.