ITEM NAME:New 12pcs 14x14x6mm Small Anodized Heatsink Cooler HU Description: A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device, thereby allowing regulation of the device's temperature at optimal levels. In computers, heat sinks are used to cool central processing units or graphics processors. Heat sinks are used with high-power semiconductor devices, where the heat dissipation ability of the component itself is insufficient to moderate its temperature. Specifications: Material: Aluminum Size: 14*14*6mm / 0.55*0.55*0.23" Fins: 7 Quantity: 12 Weight: 22g(approx.) Package Includes: 12 x Heat Sinks.In computers, heat sinks are used to cool central processing units or graphics processors. Heat sinks are used with high-power semiconductor devices, where the heat dissipation ability of the component itself is insufficient to moderate its temperature.