The TTL-232R-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 plug on the serial interface and has its I/O pins configured to operate at 5V levels.

The TTL-232R-AJ uses an FT232RQ device which is housed inside the USB 'A' connector, and is terminated at the end of a 1.8m (70") cable with a 3.5mm audio jack which provides access to transmit (Tx), receive (Rx), and GND signals.

The TTL-232R-AJ is fully RoHS compliant and is FCC and CE approved.

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