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Amazon.com: USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 10, 8, 7 and Mac Systems - Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More : Electronics
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Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232\DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) - Walmart.com
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USB to Serial Adapter w/ Detachable USB - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe
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1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Denmark
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