This Plug-and-Play innovation from Belkin lets you convert your CD-ROM drive, hard drive, or DVD-ROM drive into a High Speed USB 2.0 or FireWire portable drive. It plugs into any computer's available FireWire port or High Speed USB 2.0 port to give you convenient portable data storage.This Drive Enclosure Kit includes a top-grade Universal Switching Power Supply and a large-size fan to cool the drive and keep it operating smoothly at safe temperature levels. The case is easy to open, and adjustable to fit to a variety of drives.