Gigabyte EX58-UD5 is mainly featuring "2 OZ" copper printed circut board.This mother board have tended to be a very good overlockers.
The back of the white (and shiny) packaging gives more information about the motherboard - but it is basically a nice high end X58 based motherboard for Core i7 processors; it certainly is not short of features.
The Board
The board is quite expandable and there are plenty of haet sinks carry with VRM's Northbridge and Southbridge