THE FERA 2 HE 1224
The heatsink of the Fera 2 HE 1224 measures 152mm in height, 125mm in width and 52mm in depth with a weight of 425g.
A total of 47 aluminum fins make the main body of the heatsink spaced roughly 0.2mm from each other.
Part of the fins faces inwards on the sides to capture air coming from the fan between the fins.
The hole placed at the center of the fins may be in place to improve the airflow inside the heatsink to improve its cooling efficiency (can't say for sure).
Silentium PC has chosen four 6mm all-copper heatpipes for the Fera 2 HE 1224.
H.D.T bases (HE in this case) are almost always flat and lack the mirror like finish we all like.
The 120mm hydraulic bearing fan can spin up to 1400RPM (-+10%) to produce up to 55CFM of airflow with just 21dBA of noise.
With the 120mm fan installed the depth of the cooler increases to 75mm and its weight to 555g.