Seven-in-One Multi-port USB C Hub: This aluminum-based Acer USB C splitter expands a single USB-C port to seven ports: one MicroSD card slot, one SD card slot, two USB 3.1 ports, one USB-C port, one Type-C PD charging port, and one HDMI 4K@30 Hz port. You can work from home, the office, or while on the go with it. Delivery of 100W of power: designed to offer laptops up to 100W of high-speed charging via a Type C fast charge PD port. Charge your USB C devices so you can use the other features without worrying about power. Perfect for USB-C devices such as the MacBook Pro/Air. 4K USB-C to HDMI Adapter: With an HDMI port, this USB to HDMI hub can mirror or expand your screen. It can be used to stream full HD 1080P or 4K@30Hz video directly.