Connect to a display screen or TV for 4K video output.With three USB Port, you can charge devices, connect external hard drive.There is also a 1000Mbps Gigabit RJ45 ethernet port, TF and micro SD card readers, and two USB-C female PD Charging port.All hub ports can work simultaneously, small yet mighty.Super speed USB 3.0 ports(at full-speed): MOKiN usbc adapter USB C to USB adapter provides super fast transfer rate up to 5Gbps, 10 times faster than USB 2.0 ports, transfer and backup your files in seconds.The USB-C to PD port can charge most host computers (USB-C compatible) up to 100W while simultaneously charge your phone.