Both 120mm fans spin at 2000-1000RPM and draw power from separate 3-pin motherboard fan headers. Eight rubber vibration absorbing posts are used to hold the fans. The three 8mm diameter copper heatpipes rise up through raw aluminum fins which have a dimpled surface texture on each side. Fins measure 0.4mm thick and are spaced 2.0mm apart.

The Twister 120 heatsink stands 154mm tall, the bottom-most fin is 41mm above the CPU socket for clearance. The three heatpipes are positioned side to side where they make direct contact with the processor and angle outward slightly to form a chevron as they pass through the raw aluminum fins. The base incorporates a 10mm thick aluminum section to provide support for clamping, with a further 10mm of extruded fins for a little extra cooling.

Looking at the Sunbeamtech Twister 120 heatsink from the top you see the dimpled aluminum texture fins. The chevron pattern of heatpipes helps to ensure equitable heat conduction to the location receiving the most airflow from the fans. The base measures 45x41mm in size and features three exposed copper heatpipes.