It is a PCI Express bus compatible board that supports busmaster transfer and input and output of external devices and digital signals.Equipped with an input/output of 32 points input/output (operating voltage 3.3VDC), it is possible to select input/output in 16 points units.By transferring the bus master, large -capacity data can be used as a high -speed sampling at a maximum of 20MHz, and any digital pattern can be used as a putter generator that outputs any digital pattern.It can also be used as a general input / output board that does not use bathmaster transfer.A Windows/Linux driver is attached.- Bus PCI Express Function Bidirectional Bidirectional 32 points Response speed 50nsec (max.) Operate voltage ● Input 3.3VDC-LVTTL, ● Output 3.3VDC-LVTTL input circuit Non -insulation LVTTL level input (positive logic) Output circuit Non -insulation LVTTL level output (positive logic)