Enzotech's MOS-C10 MOSFET Heatsinks are designed to offer excellent heat dissipation and are made from pure forged copper. Often used on motherboards, video cards, and for effectively dissipating the heat from other various small chips. *Please be sure to follow included installation directions. Failure to properly clean the surface of the chip before installation will lead to the heatsink not adhering properly. Please be sure to measure your chips, spacing, and height clearance before purchasing. No returns after the package has been opened due to incompatibility or failure to follow installation instructions properly* Best small heatsinks of this type of the market due to pure forged copper construction.