CES 2010 - CoolIT were showing off its second concept PC at CES this year with the XO2 fully water-cooled concept design.

This system was one of the more impressive things we saw this year here in Las Vegas. In the size of a case that resembles a small home theater system, CoolIT's CEO told us that it was the most overclocked system that they had on display at their booth.

The XO2 implements a full water cooled design that cools all the main components of the system and allows high performance in a smaller form factor than usual. The system is also completely silent, which is something that many consumers enjoy. Watch our video below as Geoff Lyon tells us all about it.

Also at the end of the video we get a short introduction to an impressive AVADirect system that was also on display that makes use of CoolIT cooling technology.

Keep in mind that CoolIT doesn't actually sell this system, but it's a good design to have on display to let system builders and other folks know what is possible.