This LGA9527 Square 4U Active Cpu Heat Sink is designed for Intel Xeon 6 Processor such as intel xeon 6972P processor and so on, socket LGA 9527 and FCLGA7529 socket, aluminum fins with 6 heat pipes embedded and soldered on the copper base up to TDP 500W for 2U server solution. The Lori Intel LGA 9527 Socket 4U Server Active CPU Heat Sink  has been fully tested and validated by Lori to ensure the best quality and cooling performance.