The PCYDAC 2 is a two-channel, analog output card for PCs equipped with Type II PC Card slots. It lets you control ananlog devices such as proportional control valves from your laptop computer.
In addition to the analog outputs, there are eight bi-directional digital I/O lines arranged in two, 4-bit ports. They provide the capability of sensing and controlling discrete events (via external signal-conditioning hardware). These ports can be programmed to be either eight inputs, eight outputs, or four inputs and four outputs.