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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Silicon Labs CP210x USB Type B to RS232 9pin Dsub Serial Converter Cable for Pinter Link the Scanner
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C2G 1.5ft USB to Serial Cable - USB to DB9 Serial RS232 Cable - M/M - 26886 - USB Adapters - CDW.com
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Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
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