This product is a PCI Express bus-compliant interface card that extends the digital signal I/O functions of a PC. This product is a 12 - 24VDC opto-coupler isolated type with opto-coupler isolated input 16ch and opto-coupler isolated open-collector output 16ch. You can use all of the input signals as interrupt inputs. Equipped with the power for opto-coupler operation (12VDC) supplied and the digital filter function and output transistor protection circuit (surge voltage protection and overcurrent protection). This product supports a Low Profile size slot and, if replaced with the supplied bracket, supports a standard size slot, too. Windows/Linux driver is bundled with this product. Using the dedicated library VI-DAQ makes it possible to create each application for LabVIEW.