4-Input USB Gage Interface Box The FlexPort 4-USB allows you to send data to ANY Windows-based software via 3 different options... USB Keyboard Style Output. This will send data to your PC with the readings being treated by Windows just like a keyboard entry. Wherever you would be typing in data is where the incoming gage readings will be placed. USB Serial Port. If you have software that wants to pull data via a Serial Port (Virtual COMport). DB9F Serial Port, standard RS-232. Features include... 4 Mitutoyo Digimatic-style ports Each port includes a designated footswitch Units can be Daisy-chained together Includes 6' USB Cable.