1. Have the ultra-strong heat dissipation energy , have an electric fan built-in. Tyre switch. 2. USB and the upright SATA face interface, may have two IDE hard disks or a IDE and a SATA hard disk built-in, rumor says rate heigh treaches 480 MB/S. 3. Support heat to insert drawing , drive unnecessarily above WIN98 OS. 4. Ultra-strong hard disk compatible is that your business affairs ideal chooses. 5. Various colour is choice.