Thermaltake has opted to go with a set of heat pipes and outside-mounted heat sink blocks to aid in the dissipation of internally-produced heat. One of these blocks protrudes approximately two inches from the rear of the power supply, in place of the fan grate. A smaller "block", approximately 3/4 of an inch in length, protrudes from the front of the power supply, inside the computer chassis. The heat sink fins of these blocks are 100% copper and fairly densely packed.