Dimensions: 23 x 23 x 100mm Net weight: 74g Shell colors: red, yellow, blue, white, and more Shell material: plastic Packing: 1pc/gift box Gift box size: 10 x 6 x 4 cm Carton size: 44 x 42 x 28cm/100pcs Carton gross weight: 8kg Carton net weight: 7kg USB version: 1.1/2.0 DC power: 5V Data transfer rate: 480Mbps Optional AC adapter: 2A Supports Microsoft Windows XP/ME/2000/98SE/Vista Self powered and easy to install Provide up to 500mA per port for diverse devices Individual port over-current protection Stylish translucent blue, purple or green colored Plug-and-play, eliminate the clutter of extra cables and adapters No driver installation required Electrical safety: CE Environmental safety: RoHS