These cables provide a fast and simple method to convert a serial RS-232 signal to USB. The USB connector contains a small circuit board featuring the FTDI FT232RQ serial UART interface IC to handle all the USB signalling and protocols. There are two LEDs to indicate data being received and transmitted. They have a maximum signalling rate of 1Mbaud. These converters are supported with Microsoft WHQL certified VCP drivers for Windows, Apple Mac, and Linux: all of which are available, royalty-free from FTDI website. http://www.ftdichip.com

The other end of the cable has bare tinned wires and can be customised to your needs using various connectors. The cables are available in two lengths and with an optional power supply output of +3.3V or +5Vdc
No Voltage Output
FTDI Chip USB-RS232-WE-1800-BT_0.0 - (RS 687-7828), cable length 1.8 m
FTDI Chip USB-RS232-WE-5000-BT_0.0 - (RS 687-7815), cable length 5 m

+3.3V Optional Voltage Output
FTDI Chip USB-RS232-WE-1800-BT_3.3 - (RS 730-0158), cable length 1.8 m
FTDI Chip USB-RS232-WE-5000-BT_3.3 - (RS 730-0152), cable length 5 m

+5V Optional Voltage Output
FTDI Chip USB-RS232-WE-1800-BT_5.0 - (RS 687-7821), cable length 1.8 m
FTDI Chip USB-RS232-WE-5000-BT_5.0 - (RS 687-7819), cable length 5 m