Allowing laptop with card reader connection through USB 3.0 Port and providing extra 3 USB ports to connect with other USB devices.USB 3.0 Hub 3x USB ports + card reader Compatible with USB 3.0 standard, compliant to USB 2.0/USB1.1 Max transfer rate: 5 Gbps Integrated card reader supports the following memory cards: microSD/SD cards No driver installation required Hot Plug / Plug & Play Cable length: 15 cm