WD External Hard Disk Casing Enclosure 3.0 WD Hard Drive Enclosure.can be used to turn your existing 2.5" SATA hard disk into a powerful offline storage device. This is ideal when you have old hard disks which you don't want to get rid of, converting them into a massive USB memory stick. 1. With USB cable ,1 USB ports, provides over 0.5A power 2. Smooth case surface 3. Compliant with USB 3.0 Standards 4. Windows 98/ME, Windows 2000/XP, Mac compatible 5. Easy to data backup FEATURES High-speed USB 3.0 Plu High-speed USB 3.0 Plug n' Play design removes the need to install messy drivers Turn your existing 2.5" SATA hard disk into an offline storage device Self-powered for instant boot up time without the need for external power Ultra-fast USB 3.0 data transfers Play design removes the need to install messy drivers Turn your existing 2.5" SATA hard disk into an offline storage device Self-powered for instant boot up time without the need for external power Ultra-fast USB 3.0 data transfers