Expand to multiple ports Plug and play 1× high speed” 40gbps USB 3.1 C type charging interface and data transmission, 1 USB 3.1 port (C type transmission data), 2 USB 3 ports, 1 SD memory card reader 1×microSD memory card . Full usb-c function Made with USB-powered specifications, this allows the full-speed MacBook Pro (2016) to be charged while connected to SuperSpeed USB 3.1, SD card and micro SD card. Speed update This hub transmits data over USB at an incredible speed. This is a fast HD movie from the maximum 2tb external hard drive seconds. Match your new 13"15" MacBook Pro 2016 A sleek minimalist design with aluminum finishes perfectly complements the new 13"15" MacBook 2016. Note: The hub's two USB ports and two SD storage ports have a combined output of 1.5A, which requires a higher currency device that may not be supported, such as Apple SuperDrive (starting currency 2A at least). The charging chipset has an operating temperature of approximately 40.