USB to Serial Converter - TRENDnet TU-S9
Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Eaton
1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
Pololu USB-to-Serial Adapter
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Chipset) – Plugable Technologies
Adafruit WCH CH9102F Friend - USB to Serial Converter : ID 5568 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M - ICUSB232V2 - Serial Cables - CDW.com
3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
Industrial USB/RS232 USB/Serial PLC Programming W7 XP RS232 - PLCCable.com - Automation Supplies and PLC Tools
3' USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
USB-A Serial Adapter - Single Port with COM Retention | Advantage Software
USB-to-Serial (DB9) Cable - SKU 8434 — Davis Instruments
USB to Serial Adapter Cable
USB-SERIAL-F
Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
USB to RS232 Serial Converter -- DataPro
USB to RS-232 DB9 1-Port Serial Interface Adapter - Sealevel
Prolific Usb Serial 9 Pin Db9 Rs232 Adapter Cable - Usb Rs232 Port Db9 Pin Cable - Aliexpress
Sewell InstaCOM USB to Serial Adapter — Sewell Direct
Tripp Lite 5ft USB to Serial Adapter Cable USB-A to DB9 RS-232 M/M 5' - serial adapter - USB - RS-232 - U209-000-R - USB Adapters - CDW.com
Thunderlinx™ USB to Serial adapter - U.S. Converters LLC
High-Speed USB-to-Serial Adapter for Windows 8 32/64-bit - U.S.Converters
PRO Single Port USB to Serial Adapter with Activity LED 3ft.
USB RS-232 DB9 Male Serial Adapter Converter with Prolific Chip
