HDD uses a stylishly designed aluminum case to house a newer 2.5-inch SATA Series Hard Drive. The sleek StoreJet 2.5 SATA is now available in a range of colorful, polished aluminum cases (Red, Blue, Silver, and Titanium) that are lightweight and specially designed for ultra-portability. The 5400 RPM HDD is enclosed in the StoreJet's 2.5 hard drive edition casing.