The icusb2324852 2 port wall mountable usb serial adapter lets you connect every type of serial device to your usb enabled computer whether it be for rs232 rs422 or rs485 communication the adapter features a 9 pin db9 male and a 5 pin terminal block serial connector as well as dipswitch controls for easy port configuration with minimal software requirements the adapter also supports using 2 ports simultaneously including with mixed protocols for example rs 232 on port 1 and rs 485 on