The CAT-5 twisted pair video balun transceiver is very useful. It supports all video devices such as camera monitor DVR card and recorder etc. It reduces installation cost. The UTP cable is physically smaller than coax alternatives more cameras through a smaller diameter extremely easy to install and terminate. - Receive and transmit video signals over UTP wire - Sends video up to 330 meters (color-video signal) or 750 meters (grayscale video) via inexpensive cat.5 twisted pair cable - Compact size and easy installation - Comes in pair - Uses BNC male plug - Length of cable: 10cm