RR-CirKits LCC®, UN8-BE, USB2.0 to RS232 Serial Cable
USB to RS232 Adapter with Chipset, USB to DB9 Serial Converter for Windows 10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X 10.6 and Above - Walmart.com
KLARK TEKNIK VNET USB RS232 Interface | AVGear.com
WuT data sheet: Interface USB <> RS232/RS422/RS485 Industry
USB to RS-232 interface converter - Technotrade LLC
Interface Kit, RS232-USB | OHAUS
USB/RS-232 Card - 39063
W&T 38011 USB RS232 Interface Cable 2
Multi USB-RS232-RS485-TTL Converter - DFRobot
Economical, RS-232 to USB Interface Converter
MOD-USB-RS232 - Open Source Hardware Board
Amazon.com: DTech USB to Serial Adapter, RS422 RS485 R232 to USB Cable (3 in 1 Interface) Supports DC 5V with Breakout Board LED Lights for Multi-Kind Control Devices Windows 11 10 8
EC2112 IFM R360/Interface/USB/CAN-RS232 Brand New Fastshipping | eBay
USB to Serial adapter for the FLEX-6000 series – FlexRadio
FT232RL/CH343G USB TO RS232/485/TTL Interface Converter, Industrial Isolation
Amazon.com: EZSync USB-to-RS232 Serial Interface Programming Control Cable for Meade Telescope, Connect to Hand Control, FTDI chip, 4P4C, RJ9/RJ10/RJ22, 6 feet, EZSync725 : Electronics
Amazon.com: Gearmo 4 Port USB to Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac w/ESD and Surge Protection : Electronics
USB to RS232 Direct Interface Cable – Sper Scientific Direct
Industrial USB/RS232 USB/Serial PLC Programming W7 XP RS232 - PLCCable.com - Automation Supplies and PLC Tools