The icusb2321f 1 port usb to serial rs232 adaptor cable with ftdi chipset and com retention converts an available usb 11 or 20 port into an rs232 serial db9 port to connect monitor and control your serial devices features usb to straight through rs232 serial adapter single cable design for portability integrated ftdi usb uart chip com port assignments maintained across reboot baud rate up to 1152kbps powered by the usb port no external power adaptor required nbs