The Japanese manufacturer Scythe has introduced a low profile, sub-70mm tall heatsink for Intel and AMD processors tailor made for low profile computers. If you've got a low profile PC and are looking for that extra cooling edge, this might be just what the doctor ordered. The Scythe Shuriken (SCSK-1000) heatsink features copper heatpipes, high density stacked aluminum fins, a copper base and a low profile 12mm thick 100mm Pulse Width Modulation (PWM) fan. All that in a package that is 65mm tall. The fan has 13 impeller blades, spins at 650-2200RPM and is rated for 31CFM. Springy wire clips are used to hold it in position, and I suppose if your computer has the room it could be substituted for a 25mm thick 100mm fan with little difficulty.