RS232 to USB Adaptor Cable for Self-Contained Datalogger – Sper Scientific Direct
Magic RS232 to USB Adaptor USB100 | Zoro
3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
1 Meter USB to RS232 Serial Adapter DB9 Male w/Hex Nut, PROLIFIC Chipset
3' USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI
Serial (RS232) to USB Converter – Intelletto Online Store