USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 10, 8, 7 and Mac Systems - Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More 12 inch USB to RS232 9-pin male serial adapter provides transmit & receive lights, FTDI chip set. Handles full RS-232 modem control signals and hardware/software flow control. LED status indicators for TxD and RxD for easy port monitoring and diagnostic. COM port number assigned can be changed to any COM port number required Supports unusual serial COM speed settings like 500.000bps