Minimax Desktop Hard Drive USB 2.0 / Firewire 250GB Expandable - More connection capabilities with three FireWire ports and a three-port USB integrated hub Smart - Interactive cooling system with thermal probe automatically regulates fan speed Secure - Comes complete with Iomega Automatic Backup Pro (PC) and Dantz Retrospect (Mac) software for hassle-free backup and disaster recovery Compact - Just 6.5 square and 2 tall, takes up minimal space Stackable - Easily stacks with the Apple Mac mini or additional Iomega MiniMax hard drives