Compatible with USB 1.1, USB 2.0_x000D_ Transfer rate: 480Mbps_x000D_ IC: MA8601_x000D_ USB ports: 4_x000D_ Hot swap: YES_x000D_ Color: Blue_x000D_ Material: ABS plastic _x000D_ Power supply: 5V/500mA (Max.) over USB_x000D_ Durability: >10000 insertions_x000D_ Compatible with: Win98, ME, 2000, NT, XP, Vista, Mac OS X, Linux OS_x000D_ Plug and Play_x000D_ Over-current protection on every port