2M DB9 RS232 Female to 3.5mm Male Stereo Plug Cable - Austronic Cables and Accessories Pty Ltd
3ft DB9 to 3.5mm Serial Cable, RS232 - DB9 Cables & DB25 Cables | StarTech.com
C2G 0.5M DB9 Male to 3.5 Aux Adapter, 3.5mm Jack to RS232 DB9 Serial Control Cable Black : Amazon.co.uk: Electronics & Photo
Rs232 3.5mm Audio Jack Serial Cable - Buy Rs232 3.5mm Audio Jack Serial Cable,3.5mm Audio Jack Serial Cable,Ftdi Rs232 Serial Cable Product on Alibaba.com