1.Chip: NEC 2.Compliant with USB2.0 standard ; 480 Mbps transfer rate; IEEE1394 Fire-wire 400 Mbps High Speed Data Transfer; 3.Compatible with any IDE CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-R, DVD - RW,DVD+R,DVD+RW;3.5 inch IDE hard drive 4.Build-in cooling-fan; 5.Works with any USB computer, supports plug-play and hot-plug 6.Internal power adapter, USB cable included; 7.Windows 98/2000/ME/XP and Mac compatible 8.Already got the design patent in China by LCT. 9.Optional color: Silver, Black, Blue, Red; 10.Size: 260*158*52 (L*W*H, mm)