DELL 1155 1156 1150 1151 1200 high performance heat pipe copper bottom SFF CPU cooler. Cooler for all small/SFF chassis of DELL 4th generation 6th generation 7th generation 8th generation 9th generation 10th generation CPU. If you do not understand anything, please contact the seller! Brand new and original heat dissipation, with original heat dissipation silicone at the bottom, once scratched and used, it cannot be returned.