USB to RS232 DB9 Serial Cable + DB25 Pin Adapter / Port Adapter Converter for GPS, PDA, PC, Modem - Walmart.com
USB C to Serial Adapter w/ COM Retention - Serial Cards & Adapters | StarTech.com
USB to Serial Converter - TRENDnet TU-S9
USB to Serial Adapter Cable
USB to RS232 Serial for Vista -- DataPro
6ft (1.8m) USB to DB25 Serial RS232 Adapter Cable | Adapters and Couplers | Audio Video
High-Speed USB-to-Serial Adapter for Windows 8 32/64-bit - U.S.Converters
4 Port Professional RS-232 USB 2.0 to Serial Adapter
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USB 2.0 to 9-pin RS232 COM Port Serial Convert Adapter | Being Patient
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USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
36 Inch USB to DB-9 Serial High Speed Adapter with Prolific Chipset - Coolgear
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Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
Amazon.com: CableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black : Electronics
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent
Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent
US-735 - Brainboxes - CONVERTER, USB C-RS-232 SERIAL
IOGEAR - GUC232A - USB to Serial Adapter
