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Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length,
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C2G 1.5ft USB to DB9 Serial Cable - RS232 Adapter Cable - Serial adapter - USB - RS-232 - blue | Dell USA
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USB Serial Cable, USB to RS232 DB9 Converter Cable, compatible with routers, switches, CNC machines, PLCs, printers, surveillance cameras, barcode scanners, ECG machines etc. (Chipset PL2303, 1Ft) : Amazon.co.uk: Computers & Accessories
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