This product is a PCI Express bus-compliant interface card used to provide a digital input function on a PC. It features 128 unisolated TTL level inputs. You can use 16 input signals as interrupt inputs. In addition, the digital filter function to prevent wrong recognition of input signals is provided. Windows/Linux driver is bundled with this product. Possible to be used as a data recording device for LabVIEW, with dedicated libraries.