High Speed-USB 3.0 with super high speed 5 Gbps. Powered via USB port, no external power required.<br />Compatibility-Multifunction: 3-port USB 3.0 hub + card reader for MS / MS PRO DUO, SD / MMC, M2, Micro SD (TF card)<br />Convenient-to avoid the hassle of carrying multiple card reader adapters, you can use this combination to transfer photos, music and data.<br />Easy to use-lightweight and portable. Low power consumption, suitable for desktop and laptop computers. ">