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StarTech.com USB to Serial Adapter ? Prolific PL-2303 ? 3 ft / 1m ? DB9 (9-pin) ? USB to RS232 Adapter Cable ? USB Serial - Add an RS232 serial port to
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StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M
USB/Serial Converter [FT232RL] : ID 18 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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Electronic Master USB to RS232 Cable EM620503 - The Home Depot
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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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Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI
CableCreation USB to Serial 10ft Long Cable , USB to RS232 Adapter, USB to DB9, RS232 Converter 9-Pin FTDI Chipset for Windows , Mac OS and Linux - Walmart.com