Enermax 120mm White LED Cluster Cooling Fan, White UCCL12N Twister Bearing Technology - The Twister Bearing technology employs nano magnetic design with self-lubricating mechanics to achieve low noise operation with minimal friction and longer lifetime. Unique Blade and Frame Design for Enhanced Airflow - With Batwing Blades design and Carved Halo Frame for extra 20~30% airflow Near Silent Performance - the 1500(+10%) RPM ENERMAX UCCL12N produces up to 71.25CFM air flow with minimal noise of 18 dBA to efficiently and effectively disperse heat. Superior Construction - Modular Frame with aluminum ring offers enhanced stability of structure to withstand heavy-duty use. LED Light - High brightness LED with a unique lighting effect emphasizes cool aesthetics and lights up your computer. Detachable Blades - The detachable blades design allows easy disassembly for cleaning and quick reattachment. No specific tools or complicated operation needed.