Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
USB to RS232 DB9/DB25 Serial Adapter - Serial Cards & Adapters | StarTech.com
Industrial Ftdi Ft232rl Usb To D-sub 25 Pin Db25 Male Adapter Rs232 Serial Printer Cable For Epson Dot Matrix Printer Link To Pc - Pc Hardware Cables & Adapters - AliExpress
APC Compatible 940-0024C USB/RS232 DB9pin Cable for Schneider SUA1500 SUA-1000 Smart UPS SUA2200 Console _ - AliExpress Mobile