Compared to the first generation of X-QPack, the X-QPack2 is a better designed and
better performing Micro-ATX case. The improvements design-wise is the slightly
deeper chassis which gives a bit more clearance for long video cards and optical
drives, and the improved performance comes from the additional cooling and higher
rated power supply.
http://www.viperlair.com/reviews/cas...spire/xqpack2/