USB 2.0 to IDE/PATA 2.5" Hard Disk Drive HDD Aluminum External Case Enclosure 500GB Max Capacity High speed USB 2.0 interface, compatible with USB 1.1 Suitable for 2.5" hard driver.Suitable for all types of 2.5" IDE hard disk.Super slim and easy portability Aluminum magnesium alloy material. Dimensions: 4.75" x 3.75" x 0.25" (L x W x H) Support Windows ME / 2000 / XP, Mac OS 8.6 or above Easy Installation, and manual included. Hard driver not included