This 12-in-1 USB-C hub converts a single USB-C port into multiple connections, including 1 Gigabit Ethernet port, 2 HDMI ports, 1 VGA port, 4 USB 3.1 Gen 1 (USB 3.0) ports, 1 USB-C data port, 1 AUX port, and memory card slots. It supports HD 4K output and triple display via HDMI or VGA, allowing screen mirroring or expansion for 4K UHD or Full HD 1080P video. Note: Windows systems support MST, while OS X does not support three-screen display. The USB power delivery port provides up to 100W charging for compatible laptops like the OS X Pro (using the device's original adapter). Charging a 15-inch OS X Pro takes approximately 2 hours. With 4 USB 3.0 ports and a USB-C data port, data transfer speeds reach up to 5Gbps. The Gigabit Ethernet port supports 10/100/1000Mbps speeds. The hub features an aluminum alloy design for durability and multiple interfaces to suit various needs.