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Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
C2G 1.5ft USB to Serial Cable USB to DB9 Serial RS232 Cable MM Convert a DB9 RS232 serial device to USB great for PDAs digital cameras and many other peripherals - Office
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Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) - Newegg.com
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