Noctua NH-L9i and NH-L9a Low Profile CPU Cooler Review @ Hi Tech Legion
 

In a bit of a different approach, the Noctua NH-L9 is available in the two models outfitted with mounts for AMD and Intel rather than releasing an Intel only piece or trying to make a “one size fits all” mounting solution. This plays out especially well, making mounting of either variety NH-L9 a quick and easy operation. Noctua was also conscious of the mini-ITX user using a kit that requires no backplate that may interfere with ITX components on the rear of the board. The small footprint of the NH-L9 blocks no other components, including PCIe slots on mini-ITX boards or RAM slots. The NH-L9 uses two copper heatpipes and contact block along with an aluminum fin array for exceptional heat dissipation. The NH-L9i comes out of the box ready to mount on Intel 1155/1156 sockets, while the NH-L9a fits FM1 and AM2/2+/3/3+ sockets.

http://www.hitechlegion.com/reviews/...03-noctua-nhl9