USB 2.0 IDE hard drive enclosure for use with 2.5" hard drives. Specification Supports 2.5" IDE hard drives Max capacity 750GB Bus powered USB (Universal Serial Bus) 2.0 compliant Supports speeds up to 480 Mbps Backwards compatible with USB (Universal Serial Bus) 1.1 Compatible with Windows 98SE 2000 XP Vista Win 7 & MAC OS