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Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN) : Everything Else
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Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 10kV Surge Protection & 3ft. USB Extension Cable - Coolgear
StarTech USB C to Serial Adapter, with COM Port Retention, USB C to DB9 Cable or RS232 Cable (ICUSB232PROC) | Staples
C2G 1.5ft USB to DB9 Serial Cable RS232 Adapter Cable Convert a DB9 RS232 serial device to USB great for PDAs digital cameras and many other peripherals - Office Depot
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