The Thermaltake Hardcano13 fan controller/mediacard reader does not have any info on the USB pins on the units board. The internal USB connector is not keyed and will fit on the pins either way. Will I damage the unit or the mobo if I guess at which way the connector is fitted to the pins? Thermaltake has been of no help. What I need to know is what the pin designators are for the unit's board. The mobo is clearly marked. Thanx