USB to RS-232 DB9 1-Port Serial Interface Adapter - Sealevel
Startech 3' USB to RS232 DB9/DB25 Serial Adapter Cable - Walmart.com
Amazon.co.jp: UGREEN RS232 USB Serial Converter Cable, USB 9 Pin Converter Serial Cable, D-sub9 Pin, Compatible with Windows and Mac OS, 3.3 ft (1 m) : Computers
StarTech.com 3ft USB to Serial Cable, USB to Serial Adapter, RS232 DB9 COM Port to USB, Prolific - 1P3FP-USB-SERIAL - USB Adapters - CDW.com
USB to Serial RS-232 DB9 FTDI Mini Adapter with Extension Cable
Amazon.com: Letotech Cross Wired USB Serial Cable DB9 CP2102 ZT232 USB RS232 to DB9 Null Modem Cable PC Control TV Cable (Null Modem Pinout) : Electronics
Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI
USB to DB9 Serial Converter Cable, Male with Female Hardware Cat# 514372
USB to DB9 RS-232 Adapter Cable - Arun Microelectronics
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
USB adapter for serial headers (DB9) - USB Generic on LDLC
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent