The CD-391T-U2 is a aluminum alloy cased enclosure that is built for all 3.5" SATA I/II/III hard drives with capacity levels of up to 2 TB! Built with a USB interface for your data transfers and an 80mm fan to keep your hard drive running cool, this enclosure is a great tool for storing your data files. It is also designed with a One-Touch Back-Up function to ease the process. With a push of a button, you can back up all your data files safely! Along with its practicalities and functions, this new enclosure can suit your stylish needs!