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: Cools HDD for more stable operation; Reduces HDD noise and vibration; Fanless design ensures noiseless, maintenance-free operation. This product is intended for 3.5-inch hard disk drives for PCs (standard size: 146 X 101.6 X 25.4 (20) mm).