USBGear offers USB adapters and converters that you’re looking for including USB to serial for industrial use, dual video adapters for display and conversion, and USB gender changers to convert USB cable or port connections for various applications. The USB to serial adapter signals range from rs232 to rs485 and rs422 for COM port creation or integration with your current Windows 7, 8, 10 or Mac systems.
FTDI Unique USB to serial adapter cable with screw style db-9 male connector and shielded 6ft. long USB cable that uses the FTDI Chip it also has three color LED display/.
Unique 3m Prolific USB to serial adapter cable with screw style db-9 male connector and shielded 10ft. long USB cable that uses the Prolific PL-2303 Chip it also has three color LED display.