Tripp Lite 6ft 2-Port USB to DB9/ RS 232 Serial Adapter FTDI, w/ COM Retention - serial adapter - USB - RS-232 x 2 - U209-006-2 - USB Adapters - CDW.com
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StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable - Add an RS232 serial port
C2G 1.5ft USB to DB9 Serial Cable RS232 Adapter Cable Convert a DB9 RS232 serial device to USB great for PDAs digital cameras and many other peripherals - Office Depot
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Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
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3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe
Tripp Lite 5ft USB to Serial Adapter Cable USB-A to DB9 RS-232 M/M 5' - serial adapter - USB - RS-232 - U209-000-R - USB Adapters - CDW.com
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