BeQuiet's Pure Rock heatsink ships with a 120mm PWM fan that draws power from a standard 4-pin fan header. The 155mm tall heatsink uses four 6mm diameter copper heatpipes that pass through a 111mm tall aluminum fin stack. The raw aluminum fins measure 0.4mm thick and are spaced 2.0mm apart. The bottom-most fin is elevated 38mm above the socket for clearance.

The heatsink is 121mm wide and 89mm deep. The heat pipes are soldered to the nickel plated copper base plate/aluminum top cap and swaged into the aluminum fins. The heatpipes intersect the aluminum fins in a straight row, rather than spreading the heat out or a larger volume of space. Wire fan clips extend a further 5mm beyond the edge of the metal fins.

The nickel plated copper base of the BeQuiet Pure Rock heatsink measures 40x40mm in size and is between 2-5mm thick. It ships with a pre-applied patch of thermal compound. The aluminum support on the top-side of the heatpipes is 9.0mm thick. At the very top of the heatsink BeQuiet have added an aluminum bezel and turned heatpipe caps for a cleaner visual look. The leading and trailing edges of each fin has a saw tooth profile, which can help reduce flow resistance.