Scythe's Ashura Shadow heatsink ships with a 140mm PWM fan that draws power from a standard 4-pin fan header. The 162mm tall heatsink has six 6mm diameter copper heatpipes rising up through a 107mm tall fin stack. The nickel plated aluminum fins measure 0.4mm thick and are spaced 2.0mm apart. The bottom-most fin is elevated 41mm above the socket for good motherboard component clearance.

Wire fan clips lack thumb holds so they are less likely to interfere with the back of a videocard; the entire heatsink is no wider than 145mm. The heat pipes are soldered to the copper base plate/aluminum top cap and swaged into the nickel plated aluminum fins. The outer-most heatpipes are piped to the center of the base plate and the inner-most heatpipes to the outside of the base plate. This arrangement conducts CPU heat to the region of aluminum fins which receive the highest airflow.

The nickel plated copper base of the Scythe Ashura Shadow measures 43x43mm in size and is between 2-5mm thick. The aluminum support on the top-side of the heatpipes is 9mm thick. A sacrificial aluminum fin hides the presence of the heatpipes on the top of the heatsink, presenting a clean visual appearance. The leading and trailing edges of each fin also have a small crimp to help break up laminar airflow.