The 157mm tall Xigmatek Thor's Hammer heatsink accomodates up to two 120mm fans, though none are supplied. Looking at the base of the cooler, you can see the four 8mm diameter heatpipes stacked below three 6mm diameter heatpipes. Above that are two 4.5mm wide aluminum tabs that join the base and three small aluminum fins together. The baseplate consists of four exposed heatpipes surrounded by a 11mm base cap.

As the 6mm and 8mm heatpipes extend through the many overlapping aluminum fins on the HDT-S126384 heatsink, they are separated by a 8mm, bringing into question the usefulness of this approach. Each nickel plated aluminum fin is 0.4mm thick, and spaced 2-4mm apart. The bottom fin is elevated 43mm for adequate motherboard component clearance.

A 7x40mm vent extends from the top fin of the Xigmatek Thor's Hammer heatsink to just above the base. At each corner there are indents where rubber vibration absorbers lock into, holding the 120mm fans in place. The odd shape of the nickel plated aluminum fins creates a 2mm to 4mm spacing at the leading and trailing edges of the heatsink to help decrease resistance to airflow. The base of the S126384 heatsink measures 42x40mm.