Thermalright NB-1C
 

Thermalright is well known for their excellent SLK line of copper CPU heatsinks. Recently, Thermalright introduced their first northbridge heatsink, the NB-1. It is made of aluminum and comes with a very low price tag. Since then, enthusiasts have asked for a "mini-SLK" to match their SLK series CPU heatsinks. Thermalright has answered with one of their latest products, the NB-1C, an all copper version of the NB-1.

http://www.insanetek.com/index.php?page=nb1c