Thermal design must meet CPU requirements. Otherwise, the CPU will overheat and slow down the CPU, making your computer run slow. Two Intel fans are listed in insufficient marketing and advertising: the Intel E97378-001 with a TDP of 95W and the Intel E97379-003 with a TDP of 73W. If you are using an i7-9700K processor and the TDP of the fan /heatsink is 73W, the processor will overheat because it requires a fan/heatsink with a TDP of 95W. You would be much better off spending the extra $2 on a genuine Intel product, the E97378-001, with a 95W TDP, unless the vendors/website/Revain list the TDP in the ads and specifications of the product. This product would also be ideal when using a processor that requires only 73W TDP. Blindly trusting any website is too risky to increase profit due to modern materials and production methods. The omission of important characteristics raises serious doubts about the validity of the product characteristics.