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12in. USB 2.0 to RS-232 DB-9 High Speed Serial Adapter w/ Surge Protection & FTDI Chipset - Coolgear
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36 inch DB-9 Serial Adapter High Speed USB SERIAL RS-232 With FTDI Chipset, Adds one RS-232 serial port by connecting to a USB port By Coolgear - Walmart.com
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Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 6FT : Electronics
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