Features:  Easy to Use. No driver required. Plug and play. Support hot swapping function.  Stylish and Portable. Thin, lightweight and compact design with the aluminum alloy exterior makes this hub a great travel companion. Easily slide it into your pocket, bag or suitcase.  If the MacBook add this product wil be supports all your devices for work+play.  It also charges your laptop, Plug your power cord into the second USB-C port.  The small footprint saves desk space and the sleek desigh matches your laptop.  USB Type-c is the new USB-IF standard that solves several challenges faced by today's Type-A and Type-B cables and connectors.  This Product can expand your computer's connectivity and functionality with the USB 3.0 hub for ultimate flexiblility. Widely used for external storage devices, computer power source adapter, card reader, 4k displays at 30Hz refresh rate, USB 3.0 HUB and so on.  Shell Material: Aluminum Alloy.  Size: about 3.5cm x 1.2cm x 9.3cm.  Port:  1 x USB-C port(connect PC to support the device power).  1 x 4K displays at 30Hz refresh rate.  1 x USB-C to PC port(support PC charging).  2 x USB 3.0 port.  1 x SD/SDHC card reader.  1 x Micro SD card reader.  Package Included:  1 x 6-in-1 USB-C HUB Card Reader