This Plug-and-Play innovation from Belkin lets you easily convert your CD-ROM drive, hard drive, or DVD-ROM drive into a Hi-Speed USB 2.0 or FireWire portable drive. It plugs into any computer's available FireWire port or Hi-Speed USB 2.0 port to give you convenient portable data storage. Both USB 2.0 and FireWire deliver high-speed and -bandwidth capacities-ideal for transferring extremely large data files such as digital and streaming video images. 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.