Startechcom usb adaptor cables startechcom icusb2322f the startechcom icusb2322f 2 port usb to serial rs232 adaptor cable with ftdi chipset and com retention converts an available usb 11 or 20 port into 2 rs232 serial db9 ports to connect monitor and control your serial devicesthis compact adaptor features com retention allowing the same com port values to be automatically reassigned to the port if the cable is disconnected and reconnected to the host computer or if the system is reb