rctic Cooling updates an old budget favorite, a deceptively simple aluminum extrusion heatsink with a frameless 92mm fan that features thermal fan speed control. It's not a giant killer, but it is very quiet, really easy to install and provides perfectly adequate cooling performance -- all for US$20. The 4 Ultra TC HSF show that the miserly, efficiency obsessed engineers at AC are still on their game.



Link: Silentpcreview