This product is a PCI Express bus-compliant interface card for digital signal input/output (12-24VDC). DIO-6464L-PE features 64ch opto-coupler isolated inputs (for use with current sink outputs) and 64ch opto-coupler isolated open-collector outputs (current sink type), with 16ch of the inputs having an interrupt function. This product also has a digital filter function to help prevent mis-detection of input signals. This product also has output transistor protection circuits (surge voltage protection, over-current protection). With the driver libraries for Windows/Linux supplied as standard, applications with CONTEC hardware features fully utilized can be created. LabVIEW is supported with a plug-in of dedicated libraries.