Toshiba's MKxx76GSX Series 5,400 RPM hard disk drives build upon the maturity of the Toshiba 320GB* per-platter architecture to offer the same big storage capacities with enhanced quality and reliability. Five models in the MKxx76GSX family deliver capacities spanning 160 to 640GB in the compact 2.5-inch form factor. Durable, power efficient, and reliable the MKxx76GSX drive series is ideal for notebook, all-in-one and EnergyStar PCs, printers, gaming consoles, video surveillance systems, external storage devices and other computing applications. Massive storage capacities as well as quieter and cooler operation make the MKxx76GSX line an attractive, space-saving alternative to desktop hard drives. Power consumption can be reduced by more than 80% with the MKxx76GSX over like-capacity 3.5-inch hard disk drives. The MKxx76GSX broadens Toshibas line-up of environmentally-sound storage solutions by decreasing or eliminating the use of certain toxic, hazardous or controversial chemicals and materials** in the drive.