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Gearmo USB 2 Port Serial RS232 featuring FTDI Chipset with LED Indicators
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USB to serial RS232 adapter with two ports
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Delock Products 63950 Delock USB 2.0 to 2 x serial RS-232 adapter
Tera Grand USB 2.0 Type-A to RS-232 Serial DB9 USB2-RS232TS-06
Micro Connectors, Inc USB to Dual Serial DB9 Adapter Windows 10/Win 8/7/XP/Vista/Mac E07-162 - The Home Depot
Embedded Adventures - USB2Serial - USB to TTL UART Serial cable PL2303
StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered - Walmart.com