Noctua's low profile NH-L9i heatsink stands 36mm tall so it will fit into the smallest of small form factor chassis. The NH-L9i is designed to cool Intel socket LGA115x (1155/1156/1150) processors only, which is a departure from the one-size-fits-all approach we're used to from heatsink manufacturers. The Noctua NH-L9i heatsink weighs 420 grams and is built around a large, triangular copper base plate, two 6mm diameter copper heatpipes and aluminum fins. Every part of this heatsink has been nickel plated so all the joints are soldered to maintain low thermal joint resistance.