ENERMAX UC-12EB 120mm Case Fan the main component of cooling every PC system and it's the first line of defense against system overheat. With lower noise and long life, the ENERMAX Marathon fan offers a great choice for those wanting performance and quality at an unbeatable price. It features exclusive ENLOBAL bearing with magnetic-barometric design to run friction-free and noiseless. The nano-technology composite enables lowest abrasion and extreme durability. The detachable fan blade makes cleaning work a snap, so you can always keep your fan running at peak performance.