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USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi : ID 954 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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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Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
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Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics
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Trendnet USB 1.1 (Type-A) Male to DB-9 RS-232 Serial Male Adapter Cable 2.2 ft. - White - Micro Center
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Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length,
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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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