Simple, 25 years in the computer business I saw more machines killed by heat and dirt than any other cause. This little baby has quietly dissipated the heat from my notebook for well over a year with no negative issues. The big three; data protection,power protection and heat protection are not addressed by this unit, just heat and it does it well. If you don't have one, get one! Model R9-NBC-8PBK-GP(Black) Dimension 343 x 266 x58.6mm 13.5” x 10.5” x2.3” Material Aluminum andRubber Weight 582g; 1.3lbs Compatibility Supportsall 14”-15” laptops and up to 17” Fan Dimension 80 x 80x 10mm (two fans included) UPC Code 884102006180(Black) Addendum 2/5/12: I still think this unit does a nice job cooling but I am grossly disappointed in Cooler Master’s customer service. Admittedly the unit does a good job but the original fans now groan like Eagle fans watching old Donovan McNabb throw a bullet to TO’s feet. To me, a major selling feature of the unit was the “easily replaced”...