The NTI XTENDEX V-300 ST-C5V-300 VGA to RJ45 Extender Pair is a set of devices that allows you to extend the distance of your VGA cables while maintaining a 1:1 connection split. The extender pair is powered by a 9V output voltage and features Ethernet (RJ-45) female connectors on one end and VGA connectors on the other. It is compatible with various models such as ST-C5V-300 and XTENDEX V-300, making it a versatile option for computer networking setups. The color options include black, gray, and blue, providing flexibility in your setup's aesthetic.