Intel's NUC Rugged is a modular PC kit that’s small in size but not on toughness or reliability. It features a fanless, ventless design to minimize particle intrusion, so it’s built to survive environments most PCs can’t. Even without a fan, it can operate in temperatures from 0-40˚C to thrive in severe in-the-field conditions. Systems are scalable from Celeron all the way up to Core i7 with vPro, and carry a 3-year warranty.
Source: Simply NUC