Thermaltake's Jungle 512 socket 775 heatsink looks like it packs a pretty heavy punch.... but does it really? It's monsterous 92mm PWM fan draws upwards of 1.0Amp at full speed, and its red fan blades spin with enough force to take a big chunk out of careless fingers too. Below the big fan is a circular array of bifurcated aluminum fins, and at the Jungle 512's heart a large copper slug; all fairly standard stuff for an Intel socket 775 heatsink. The Intel 'Prescott FMB2' compliant Thermaltake Jungle 512 heatsink is equipped with a 32x92x92mm 4-pin PWM fan that rotates at between 2300 and 3600RPM. When installed on a PWM fan compatible socket 775 motherboard, this finger chopping fan scales its speed to meet the immediate thermal demands of the processor, without creating too much unnecessary noise.