The Hi Speed 2 0 USB Hub by Raz Tech Supports 500GB Features 1 Upstream and 4 Downstream USB Port Included Fully Compliant with USB Specification Version 2 0 Plug Play USB Device Half Transparent Design With Blue LED for Power Specifications Interface USB 2 0 Compatible With USB 1 1Data Transfer Rate 1 5Mbps 12Mbps Up to 4800MbpsBus Power Limit current Protection 500mA