Overview:480 Mbps 4PORT USB2.0FEATURESFully compliant with USB2.0 specification Backwards compatible with USB1.1 Maximum data transfer rate is 480 Mbps Connects up to 2 devices without a power adapter Individual port over-current protection Plug-&-Play No driver installation required. Indicator Light Status 1 Power LED For PC Users Pentium Processor-bassed computer with USB2.0 Port available Windows 98, SE, 2000, Me, XP, Vista or 7 For Mac Users Note: If the color out of our stock, we will ship the item in random. Specification: Weight Approx:65g Size Approx:6.5 x 4 x 2.2