About this item USB hub all-aluminum body. Fine craftsmanship, Rugged metal housing protects against breakage and is more durable than plastic. Fast data transfer, 1 Port USB 3.0 Hub, 3 Port USB 2.0, Transmission of data without waiting, fast and efficient. USB charger can charge four phones at the same time, USB Hub Extensions very powerful. Mini portable and easy to carry, Keep your desk clean. More enjoyable work and play Hub Extensions meet the multi-port expansion requirements of the device. Charging, USB flash drive, mouse, keyboard. Product introduction: Suitable for USB port computer and other equipment, standard USB3.0 theory 5Gbps high-speed transmission, can actually SUB2.0 multi-port expansion, such as: mouse, keyboard connection, peripheral device connection, charging through the USB port to the mobile phone and other multi-port points line. Kindly Note: maybe there are some color differeence between pictures, if you mind it, please don't place the order. thanks Design highlights: 1. Fine craftsmanship, all-aluminum body. 2. Mini portable and easy to carry. 3. Meet the multi-port expansion requirements of the device. Performance characteristics: 1.USB3.0*1 theoretical speed 5Gbsp, standard USB3.0. 2.USB2.0*3 theoretical speed 480Mbps, standard USB2.0, to meet the needs of multi-port expansion.