OHAUS i-DT33P Manual De Instrucciones página 6

EN-4
5. Take out the USB board supplied. Connect the cable's another side to the
connector on the USB board (circled). Then insert the USB board into the two
card slots (circled) on both sides.
6. Take out the USB cable supplied and pass it through the hole where the
sealing plug is removed (circled), and then connect its USB interface to the
connector on the USB board (circled).
USB board