BC Master USB-C to 4-Port USB 3.0 Hub with Power Delivery Charging Port USB-C with Power Delivery In the case of just one port of new MacBook, the hub can offer charging current at full speed via the standard USB-C PD Port while data transfering data - leaving you with more time. SuperSpeed No drivers required, the hub gives you access to immediate, blistering speeds. With data transfer rates of up to 5Gbps, you'll be able to sync files and interact with your Mac or PC more efficiently than ever. MultiProtect Safety System The hub supports hot swapping, plug and play. Surge protection, temperature control and more advanced safety features keep you and your devices safe. Remarks: - The 4 USB 3.0 Port of this Hub is not designed to serve as a stand-alone charger, and won't be able to charge iPad or any other power-hungry devices; - May not work with 2.4GHz wireless devices such as wireless keyboard and mouse adapters; - Some USB 3.0 devices requires a direct connection to host ports, including certain hard disks such as Seagate, Apple Superdrive; - Please connect the MacBook power adapter to the hub first, and then plug in your USB 3.0 / 2.0 devices. Otherwise, the power delivery function may not work properly; - Please do NOT disconnect the external power source from the Type C female port when transferring data. Otherwise, the data transfer would stop.