PSM-5000 The Nexus PSM-5000 is a passive full copper SkiveTek heatsink for Intel Pentium M processor and it is perfect if you want to create a single fan solution in your psile case. The interiour design of your psile allows you to cool your Pentium M using only the internal case fan that is inlcuded in the package of your psile case. PSM-5000 Specifications: 99.5% pure copper Skivetek technology For socket 479 Thermal compound included Size: 50 x 50 x 47 mm What is the SkiveTek®? SkiveTek® is one of the worlds most advanced technologies. This concept permits the production of heat sinks with a precise and super fine detail. SkiveTek® represents a process of shaping materials to produce lightweight, high fin density thermal solutions. Base plate and fins are constructed out of one piece of pure aluminum or copper by cutting the material in thin layers, bending the fins in place. No bonding, welding, soldering or adhesive is involved; the joint between fin and base is continuous aluminum or copper. SkiveTek®- ultimate heat conductivity!