USB to RS232 Adapter (FTDI Chipset), CableCreation 3 Feet RS-232 Male DB9 Serial Converter Cable for Windows 10, 8.1, 8,7, Vista, XP, 2000, Linux, Mac OS X 10.6 and Above,1M / Black - Walmart.com
USB to Serial RS-232 adaptor
PRO Single Port USB to Serial Adapter with Activity LED 3ft.
USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
Amazon.com: SABRENT USB to RS-232 DB9 Serial 9 pin Adapter Prolific PL2303 1-ft [SBT-USC1K] : Electronics
Electronic Master USB to RS232 Cable EM620503 - The Home Depot
StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M - ICUSB232V2 - Serial Cables - CDW.com
USB to RS232 Converter - 6ft - CAB-11304 - SparkFun Electronics
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
USB-RS232-WE-1800-BT_0.0 - FTDI
Industrial USB/RS232 USB/Serial PLC Programming W7 XP RS232 - PLCCable.com - Automation Supplies and PLC Tools
RS232 to USB Adapter Cable, 5-ft | Eaton
Mettler Toledo RS232 to USB Converter Cable for XPR Microbalances and Ultra-Microbalances | Fisher Scientific
StarTech.com USB to Serial RS232 Adapter Cable with COM Retention 1' - ICUSB232PRO - USB Adapters - CDW.com
Tera Grand USB 2.0 to RS232 Serial DB9 Adapter USB2-RS232WN-06
USB-RS232-PCBA FTDI | Mouser
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
C-USB-SERIAL: USB to RS-232 DB9M Serial Converter - iWorx Systems Inc