This is an all copper socketA / 370 cooler. The special wave-fin (curved) design and use of skiving instead of extruding makes this cooler an attractive unit. Installation of the cooler is done by attaching a steel clip to the socket. The screwdriver-support on the clip is rather small, making it easy to slip and damage your motherboard, even though it does not take all the force in the world to attach the clip.