USB2.0 and USB1.1 Compliant and USB-IF certified

Input: AC 110v-240v, 50/60 Hz

Output: DC 5V 1A

Powered by bus-power, or by external power adapter (included)

Provides 7 USB host ports that work with Hi-speed (480Mbps) full-speed (12Mbps) & low-Speed (1.5Mbps) data transfer rates

One upstream and seven downstream ports

Over-current detection and protection for each down-load port.

Supports hot swapping - Plug and Play

Connect up to a maximum 127 devices simultaneously

Automatic switching to power adapter when power is low from the USB port on the computer.

Support Windows 98/SE/ME/NT/2000/2003/XP/Windows 7/Vista and Linux 9

Dimensions: 81 x 46 x 24 mm