9-port expansion, the perfect solution to your work troubles like lacking interfaces, small displays, etc. Dual HD ports offer simultaneous connection to two displays for your laptop, quick and easy control with just a mouse when multi-tasking The HD port supports 4K@30Hz resolution ratio, screen projection with ultra clarity for more efficient work PD 100W fast charging, working and charging at the same time USB 3.0 ports, 1G files transferred in 3 seconds Supports 1000Mbps/100Mbps/10Mbps wired network, speeds up your downloading process, videoconferencing with HD clarity High speed transmission for pictures and files, widely compatible with cameras, car recorders, drones, cell phone memory cards Specifications: Material: Aluminum alloy USB 3.0*2: 5 Gbps (Max.) USB 2.0: 480Mbps HD*2: 4K@30Hz (Max.) Type-C PD: 100W (Max.) RJ45: 10 Mbps/100 Mbps/1000 Mbps SD/TF: 104MB/s (Max.) Input: 5V/3A, 9V/3A, 15V/3A, 20V/5A Output: 5V/0.9A Operating systems: Windows, for Apple OS, for Linux, for Vista, etc. Applicable devices: Mainstream Type-C Notebooks/mobile phones such as for Apple MacBook Pro 2016/2017/2018/2019/2020/2021, for Apple MacBook Air 2018/2019/2020/2021, etc. Weight: ≈113g