120 mm Reverse Fan is a remarkable design and the core element of the F-LUX Platform from Antec. The F-LUX Platform is an industry-leading and highly efficient design featuring an advanced case structure for massive airflow with 5 x 120 mm fans included. As the main role of the F-LUX Platform, 120 mm Reverse Fan is designed for being placed on the top of the PSU chamber, pulling in cool air from the bottom and right side of FLUX Series cases and leading the best rise in cooling performance of your GPU.