Tripp Lites B165-101 RS232 Serial over Cat5 Extender Kit is a low cost solution that provides remote access and control of any RS232 protocol device. The B165-101 extends control of a serial device to over 3280-ft. (999.74 m). Supports full-duplex, 3 pin, data communication (signal ground, transmit data line, and receive data line). Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases.