This external ultra slim enclosure is designed for 2.5. SATA laptop hard drives. This tiny portable device provides maximum durability, flexibility and portability with standard USB 2.0 Hi-Speed interface. Just plug the USB cable into any notebook, desktop, or Macintosh with USB ports and you have instant connectivity. With built-in hot swap technology, you can connect and disconnect the drive at any time. It is specially designed to enhance performance of mainstream PCs and laptops. Speeds are consistent, even under heavy workloads and multi-tasking allowing for faster file transfer. This casing 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.