niceEshop(TM) USB to RS232/RS-232 Serial DB9 Cable Converter Adapter(One CD and One USB Serial Converter) Connections: USB port; Type A male, RS232 port; 9-pin male One set incledes one CD and one converter cable Allows your PC to connect serial devices and programs that communicate through COM ports System requirements: USB 1.1 or 2.0 port; Windows 2000/XP/Vista/7 compatible