Thermaltake Engine 27 1U Low-Profile CPU Cooler supports Intel Socket LGA 1150/1151/1155/1156, and is specially designed with 27mm height, metallic structure and copper base that offer an excellent balance between performance, size and acoustics. The compact size 60mm fan is the ideal choice for small form factor applications. Moreover, with the built-in PWM fan and metallic blades and fins design, the Engine 27 guarantees extremely low noise level without compromising on the cooling performance. Designed with 27mm height, the Engine 27 is the ideal CPU cooling solution for slim and small form factor applications, such as 1U server, HTPC, AIO/PIO PC, POS terminal and Booksize/Mini PC. To make a perfect balance between cooling performance and noise level, forty fan blades are engineered to generate large volume of air passing through the heatsink at any angle. Additionally, the metallic blade rotation will create a centrifugal force on ambient air. In the meanwhile, the centrifugal forces will expel hot air so that heat can easily be taken away from the fan blades. Most importantly, this cooling technique can reduce the blade’s noise and vibration because hot air expelled will create a vacuum, and then fresh cooling air will be drawn in the heatsink.