Brand new and high quality. Portable size, Compact, light weight design. Plug and play, no driver installation required. Fully compliant with USB 3.0/2.0/ 1.1. Supports data transfer rate up to 480Mbps/5Gbps. Expand 3 USB ports supply up to 500mA current per port. Use high performance electronic part to ensure stable product operation. Support downstream wrong signal detection and revert to normal function. Power consumption, low operating temperature so solts and slots without interfere with each other. Allows simultaneous operation of up to 3 separate devices all attached to a single USB port. USB A male connector can be rotated 180 degrees, easily meeting users orientation angle demands. Supports Win ME/ Vista/ XP/ 2000//Win 7 MacOS 10.4.5/ Linux 2.4.1 and so on. The product is suitable for U disk, card reader, USB mouse, USB keyboard, scanner, digital camera. Specifications: Color: Black, White USB 2.0 Hub Interface: 3*USB 2.0 USB 3.0 Hub Interface: 1*USB 3.0 + 2*USB 2.0 Transmission Rate: USB 2.0 port up to 480Mbps; USB 3.0 port up to 5Gbps Operating system: Win95/98SE/Me/2000/XP/7/8/10/vista, Linux, Mac OS 8.5 and above. Power Supply: USB 5V/600ma External Power Supply: 5V/1.5A-2A Usage Temperature: 0 -70 Storage Temperature: 10 -90 Size: Approx. 55*20*18mm / 2.17*0.79*0.71inch Package included: 1 x USB Hub Note: Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks