This product is a PCI Express bus-compliant interface card for digital signal output (12-24VDC). DO-128L-PE features 128ch opto-coupler isolated outputs (for use with current sink outputs). 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.