USB to UART cable Supports +3.3V UART signals
The TTL-232R-3V3-AJ ("audio jack") is a USB to Serial (TTL level) converter cable which allows for a simple way to connect TTL serial interface devices to USB. This version of FTDI's USB to TTL serial adapter cable uses a 3.5mm audio jack on the serial interface and has it's I/O pins configured to operate at 3.3V levels.
The TTL-232R-3V3-AJ uses a FT232RQ device which is housed inside the USB 'A' connector, and is terminated at the end of a 1.8 m (70") cable with a 3.5 mm audio jack which provides access to transmit (Tx), receive (Rx), and GND signals.
The TTL-232R-3V3-AJ is fully RoHS compliant and is supplied loose packed in an anti-static bag. It is FCC and CE approved.
NOTE Window 7 Users:
If you simply plug in the FTDI device, you should find that the drivers will auto-install.
You will find the drivers for all other systems at: http://www.ftdichip.com/Drivers/VCP.htm This includes Windows 8, and all other Windows Versions, Linux, Mac OS X, Windows CE. See the above URL address for full version information.