Extend the range of your serial RS-232 control interface with the convenience of standard Cat 5e cables. Compatible with all RS-232 protocols. Features: - Full-duplex data communication. - Sends RS-232 data at 230 kbps up to 1000M / 3300 ft. - Pure hardware solution - real time data transfer, no software conflicts. - Transfer data or files between PCs, equipments. - One Cat5 cable extension. Package Contents: - RS232 Extender Local Unit - RS232 Extender Remote Unit - User's manual - 2x AC power adapters 9 VD0C, 300mA - 20cm Null Modem cable (DB-9 Male to Male)