For PC-based control and automation of sensors, switches, and security controls, the Omega Engineering OMG-PIO-24-LPCI low-profile PCI board provides 24 channels of buffered digital I/O, emulating 8255 mode zero. The board is CE-compliant and compatible with the MD1 low-profile and universal bus (3.3V and 5V) and ships with a ribbon cable terminating in a standard 50-pin insulated displacement connector. It works well for automotive, chemical, and marine industries, and for applications such as HVAC, engine testing, and processing. the cost is $159.
Data sheet: http://www.omega.com/DAS/pdf/OMG-PIO-24-LPCI.pdf