USB to RS232 Serial - Connect legacy DB-9 serial communications devices to a modern computer with USB Legacy Support - Add a 9-pin DB9 RS-232 serial port to any modern computer, replaces built-in or PCIe serial adapters, recommended for use with a serial cable or NULL modem cable Flexible - Programmable baud rate from 75 bits per second to 128,000 bits per second. Plug-and-play creation of a COM port. Powered by USB; no external power needed Compatible - Prolific PL2303GT Chipset for widest possible compatibility with Windows (11, 10, 8.x, 7, and Vista), Mac, Linux, and other platforms