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StarTech.com USB to Serial Adapter - Detachable 6 ft USB A-B Cable - Prolific PL-2303 - USB to RS232 Adapter Cable - Add an RS232 serial port to your laptop or desktop
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Amazon.com: IOGEAR USB to PDA/Serial (DB9) Adapter w/ PC & Mac Drivers - GUC232A : Cell Phones & Accessories
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