500GB Porsche Dsgn P'9221 Safe, Strong and Aluminum: With 5mm of solid aluminum casing surrounding the disk inside, your data is solidly protected. LaCie and Porsche Design worked together to combine form and function-resulting in a drive that looks great (and works great!) on your desktop Automatic Backup: Easy setup and automatic worry-free backup for both PC and Mac computers Password Protection: With LaCie Private-Public software built-in, it's easy to make sure that your files are secure and protected, no matter where you go 40% Energy Savings: Automatic Eco mode lowers the power consumption by up to 40% when not in use, increasing the battery life of your notebook or laptop