Despite the fact that computers have become commonplace at home and at workplaces for a long time, true user friendliness of the computers is still a long shot. Zalman Tech strives to make that goal a closer reality through extensive research and development of its products and will continue to put efforts to creating more enhanced levels of user friendliness in computing.PRODUCT FEATURES: Does not generate noise or vibration in Silent Mode; Pure Copper base materials ensure excellent heat dissipation; INTEL Pentium 4 (Socket478) and AMD Athlon 64 (Socket754) compatible design for broad compatibility; 92mm fan inside the FHS maximizes airflow; Adjustable fan speed controller (FAN MATE 1) enables control of noise and fan performance.