Extend the range of your serial RS-232 control interface with the convenience of standard Cat 5e cables.Compatible with all RS-232 protocols.FeaturesFull-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 CAT-5 cable extension.Package ContentsRS232 Extender Local UnitRS232 Extender Remote Unit1 user manual2 power adapter DC 9V/300mA1 20cm Null Modem cable (DB-9 Male to Male)*Monoprice continually strives to improve its product line to bring our customers the best products available. Therefore, changes may be made to listed specifications without prior notice. Item received may not match photo or specs shown.