Startech 4 Port Usb To Serial Rs232 Adapter Wall Mount Din Rail Com Port Retenti\n\nStarTech 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2324I) - Add 4 DIN Rail-mountable RS232 Serial ports to any system through USB - 4 port usb serial adapter - 4 port usb to rs232 - USB to DB9 - USB to serial converter - USB to serial hub\nThe ICUSB2324I 4-Port Industrial USB to Serial Hub with DIN Rail Clips converts a single USB port into four RS232 serial ports, enabling you to connect to, monitor and control your serial devices.\nFeaturing rugged metal construction, with sturdy wall-mounting brackets and top-hat DIN Rail clips (included), this USB to Serial Hub provides versatile mounting options and a robust solution for both harsh industrial environments and simple desktop installations.\nThis USB powered adapter also retains assigned serial COM port values once connected, allowing the same values to be automatically reassig;