"As mentioned before the Triton 75 is a passive cooler. ASUS includes all of the hardware needed to attach a 120mm fan to the cooler. Assuming that most users will be adding a fan we are going to test the Triton 75 with a 120mm fan.

The Triton 75 is a four heatpipe cooler with a copper base and uses aluminum fins to dissipate heat. As you will soon see the cooler is designed to pass air from above and push it down to the motherboard."