AMC 350C2-PTS Silver Combo Slim USB 2.0 / Firewire 1394 (Oxford 911) External Enclosure for 3.5 Inch HDD w/ Ball Bearing Fan & AntiShock - RETAIL FireWire - Oxford Semiconductor OXF911+ USB 2.0 - AT2+ MicroChip. Plug and Play Hot-swappable Internal fan