C2G 1.5ft USB to Serial Cable USB to DB9 Serial RS232 Cable MM Convert a DB9 RS232 serial device to USB great for PDAs digital cameras and many other peripherals - Office
USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
StarTech.com RS232 DB9 Male to 3.5mm Audio Jack Serial Cable, 1m (9M351M-RS232-CABLE)
Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303GT Chipset) - Newegg.com
Serial Cable RS232 DB9 Male to Female 5ft - Coolgear
USB to DB9 RS-232 Adapter Cable - Arun Microelectronics
Serial cable - Wikipedia
USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable - Sabrent
Serial Cables - Advantech
Serial cable, 9-pin extension cable (socket - plug)
StarTech.com 0.5m Black Straight Through DB9 RS232 Serial Cable - M/F - MXT10050CMBK - Serial Cables - CDW.com
DB9 RS-232 Male to Blunt - Serial Breakout Cable - Custom Cable Connection
Amazon.com: 200 Foot DB9 Male to Female RS232 Extension Serial Cable - 24 AWG with Grey PVC Jacket - Made in USA by Custom Cable Connection : Electronics