Pro-Clockers posted a review on the XG Magnum 600W External PSU

It seems that power and heat is the biggest concerns today when build the perfect. It likes everyone is manufacturing products that requires crapload of power and when purchasing a power supply to support all these products aid in adding more heat to your system. Well, XG has come up with a solution that help to distribute more power and eliminate the heat build up from such a large power supply. The Magnum 600 Ex is an externally built power supply that promises to be the ideal problem solver to the above mentioned problems.

XG Magnum 600W External PSU Review