Product Description - Performance cooling with a low-noise profile. - Twister Bearing technology for longer lifetime and low noise.. - Batwing Blades design and Carved Halo Frame for extra 20~30% airflow.. - Patented Modular Frame with aluminum ring for enhanced stability of structure. - Detachable fan blades for easy cleaning. Set Contains: ENERMAX UCTB8 Case fan - 8 cm