Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
Amazon.com: Sharp DIN to D-SUB RS232C Adapter (ANA1RS) : Electronics
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Eaton
1.5ft (0.46m) Velocity™ DB9 Male to 3.5mm Male Serial RS232 Adapter Cable | Serial RS232 | Computer Cables | USB and PC
Tera Grand - 10 FT USB 2.0 to RS232 Serial DB9 Cable with Hexnuts
C-6200AKB-P RS232 Serial to Ethernet Converter EtherNet/IP POE - rfIDEAS-shop
USB to Serial Adapter Cable w/ Isolation - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
rs232c usb conversion, CableCreation USB to RS232 adapter [Built-in FTDI chipset] Gold-plated USB 2.0 (male) -RS232 (male) DB9 pin serial conversion cable Windows 10 / 8.1 / 8/7 / View / XP / 2000 / L - Newegg.com