The 120mm PWM fan spins at 500-1500RPM and draws power from a standard 4-pin PWM motherboard fan header. It is backwards compatible with 3-pin connectors. The three copper heatpipes are 8mm in diameter, and extend from the base up through all the fins. The two cuts in the aluminum base are for the AMD K8 mounting clip to lock into. The aluminum fins measure 0.3mm thick and are spaced 2.0mm apart.

The Akasa Nero AK-967 heatsink stands 160mm tall, the bottom-most fin is 38mm above the CPU socket for clearance of adjacent capacitors, chipset heatsinks, etc. The three copper heat pipes are positioned side to side at the center of the aluminum block where they make direct contact with the processor. The base incorporates a 14mm thick aluminum section to provide support for clamping. Notice also the scalloped pattern the edge of each folded over aluminum fin makes.

The usable area of the Akasa Nero AK-967's base is 41x35mm in size. the three 8mm diameter copper heatpipes have been swaged into the aluminum base block, and each surface made flush by a light sanding. Surface roughness is on the order of ~32 microinches, which is considered good. Looking from the top down gives a clear view of the 8mm plenum created behind the 120mm fan by the wavy pattern in each stamped aluminum fin. All three heatpipes are positioned towards the outer edge of the cooling fins, directly in the path of the highest velocity airflow from the fan.