DcDcConverters

http://scratchpad.wikia.com/wiki/Sasecurity

DC-DC converters that can be used in a Vehicle
*http://www.starnetwifi.com *http://www.mini-box.com *http://www.short-circuit.com

There are converters for embedded motherboards like the Via M-10000 and desktop PC's.

See http://www.zoneminder.com wiki on DC-DC converters