This hard disk will working on computer but hard disk will mostly data transfer of my computer. This hard disk will be designed on metallic body but the problem on working problem in designing rhis problem in data storage effect and also the design. Toshibo canvio alumy 2 tera bit data for storage issues in canvio main problem in designing toshiba canvio alumy will china company . Toshiba models are best designing but why this models worst to designing what the problem in toshiba.