Product Features Patented luminum housing allows for excellent heat dissipation and a sleek modern look Portable and lightweight design Plug & Play compatibility for easy and quick installations Enables you to transfer data quickly and safely from your PC or Mac for back-up and/or storage purposes Suitable for 3.5" hard drives Specifications -Interface rate: 480Mbps -Maximum capacity: 250GB -Chipset: GL811E -Material: Aluminum -Interface: USB2.0 -Power supply: bus-powered CE, FCC Certified -Operation system: Windows98SE/ME/2000/XP/Mac OS 9.x/X, Linux2.4x or higher -Open with fingertip, change HDD easily -Dimension:120.5 x 199.5 x 29.5 mm -Package: Data Cable, Driver, User Guide