1. Fully compliant with the USB 2.0 specifications 2. Fully compliant with the USB 1.1 specifications 3. Can connect up to maximum of 127 USB devices to PC through daisy-chain 4. Increased bandwidth of 480Mbps (exceeds that of IEEE 1394 firewires with 400Mbps 5. Allows to connect devices that consume a great deal of bandwidth such as external storage devices, scanners, printed, DVD drives, CD-RW drives, MO (magneto-optical) drives, and digital cameras/camcorders to computer 6. High-speed of 480Mbps data transfer rate (vs. 12Mbps of USB 1.1 and 400Mbps of IEEE 1394 firewires) 7. Four external auto speed selectable USB type A downstream ports, supporting 1.5, 12, and 480Mbps 8. Supports Win 98, 98SE, 2000, ME, XP and iMac 9. External power adaptor to help with fast transmission speed