SKU: V28-CH371-BK With Simplecom CH371 Ultra Slim Aluminium USB 3.0 Hub, you can instantly expand USB connectivity with 7 Super Speed USB 3.0 ports. Today's laptops are lighter and more compact than ever, that savings in size comes at the cost of fewer USB ports to connect your USB accessories. This 7 port aluminium hub is a sleek and stylish extension to your laptop or PC, which features USB 3.0 Super Speed data transfer speeds, plug-n-play and backwards compatible with USB 2.0 and 1.1 devices, making it easy for any user to connect more USB devices to computer. Features 7 Port USB 3.0 Hub for PC and Laptop Sleek Ultra Slim Design with Aluminium Casing USB 3.0 SuperSpeed Data Transfer Rate up to 5Gbps Backward Compatible with USB 2.0 Compact and Slim, Plug and Play LED Indicator Dimension: 15.5*3.5*1.2 (cm) 5V DC Socket on Hub, external power adapter is optional Windows XP and above (32/64-bit), Mac OS X 10.2 and above Package Contents 1x Simplecom CH371 7 Port USB 3.0 Hub Note For stable operation without external power adapter, devices connected to this hub should not exceed a combined current of 5V 900mAh. Do not connect it to more than one high power-consuming device, such as USB HDDs, USB Fan, etc. This hub is not meant to serve as a stand-alone charger. It is not compatible with iPads or any other devices with irregular charging requirements.