StarTech.com RS232EXTC1 allows you to extend the range of your RS232 serial connection by up to 1000 meters (3300 feet) over a single Cat5/5e/6/6a cable, making it suitable for industrial monitoring, POS, security, medical, and traffic flow applications. It supports data transfer rates of up to 230 Kbps, requires no additional software or drivers, and is compatible with Windows, Mac, and Linux operating systems. The extender comes with a local unit, remote unit, null modem cable, power adapters, and a user manual.