... USB2.0, the speed up to 480Mbps 3. No driver required, plug and play 4.LED shows DescriptionThe WS ... -UH3040 4-port USB 3.0 hub provides 4 Supper-Speed USB 3 ... very easy to use, Plug-n-Play, hot swappable and portable.Features4 USB 3.0 ports for easy ... (Celsius)USB SpecificationUSB 1.1 and 2.0 , 3.0 compliantTransfer Rate5Gbps / 480MbpsHumidity20-80% RH, (Non ...