Thunderlinx™ USB to Serial adapter - U.S. Converters LLC
Cable: for Protos X bus couplers, 9.8ft/3m cable length (PN# PX-USB-232) | AutomationDirect
USB-RS232-WE-1800-BT_3.3 - FTDI
Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable
StarTech USB to RS232 DB9/DB25 Male to Male Serial ICUSB232DB25
USB RS-232 DB9 Male Serial Adapter Converter with Prolific Chip
USB to RS232 Serial Converter -- DataPro
Amazon.com: CBL-USB-232: USB to RS232 Converter Cable with Thumscrews, 1.1m long (Prolific PL2303) : Electronics
1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters
USB TO RS232 RS485 USB Serial Communication module Industrial Grade USB 232/485 Signal Converter|Connectors| - AliExpress
RS232 to USB converter - Victron Energy
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 Female Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
Converter USB to RS232 USB A (M) - D-Sub 9 (M), 1m | GM electronic COM
StarTech.com USB to Serial RS232 Adapter Cable with COM Retention 1' - ICUSB232PRO - -
Free Shipping Usb To 232 9 Pin Rs232/com Converter Y-105 Usb To Serial Cable,dual Chip Rs232 Converter Adapter Db9 Gps1m/3ft - Pc Hardware Cables & Adapters - AliExpress
6ft. USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset