Connect a RS-232 serial device such as a modem to a USB port on your computer
Easy installation with Universal Plug and Play
Supports multiple operating systems
Interface: USB – 1.1 Type A RS-232 (9-pin) Male
Supported OS: Windows 7 (32/64-bit)/Vista (32/64-bit)/XP(32/64-bit)/ 2000/ME/98SE Mac OS 10.1~10.6.
Install as a standard Windows COM port, full RS-232 modem control signals, RS-232 data signals, TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND.