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Ativa USB 2.0 to Serial Adapter 1 RS 232 DB9 Black 26847 - Office Depot
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Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
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Amazon.com: CableCreation USB to RS232 Serial Adapter (FTDI Chip), 6.6 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, Linux and Mac OS X, macOS, 2 Meters/Black : Electronics
RS232 DB9 Female to USB 2.0 A Female Serial Cable Adapter Converter 8" Inch 25cm - AliExpress
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Tera Grand USB 2.0 Type-A to RS-232 Serial DB9 USB2-RS232TS-06