Aluminum Fins and 4 Copper Heat pipes for excellent cooling. 

Metal black shroud Directs airflow for maximum performance. 

*NOTE 

CPU COOLER COMES AS PICTURED, NO BACKPLATE INCLUDED OR NEEEDED. ALL X79/X99 MOTHERBOARDS HAVE APPROPRIATE MOUNTING POINTS ON SOCKET, JUST SCREW THIS CPU COOLER IN AS SEEN IN PICTURES.