Trendnet TK-EX4 extends your keyboard, mouse, and video signals up to 330 feet (100 meters) away from your computer using a single Cat5e/6 cable. It's perfect for connecting to a computer in a remote location, such as a server room or a different building. The TK-EX4 supports resolutions up to 1920x1200. It also features a variety of security features, including password protection and user access control.