Expand the computer port to 1 HDMI 4K output port, 1 USB C charging port, 3 USB (one USB3.0+2 USB2.0) ports and 1 Ethernet port (RJ-45). Multi-port hubs can make your life/work more efficient and manage different devices at the same time.Supports a wide range of Type-C and Thunderbolt 3 devices, such as for Pro 2018/17/16, 2018/17/16, Air 2018, iMac / iMac Pro 2017, Chromebook Pixel, Huawei MateBook X, Samsung Galaxy, etc.The Ethernet/RJ45 port can support 10Mbps / 100Mbps high-speed transmission, and the HDMI port supports ultra-high-definition resolutions up to 4K 3840 x 2160P @ 30Hz.Three USB ports can work at the same time, supporting data transfer speeds up to 5 Gbps. The charging speed of the Type-C charging port is twice the normal speed, ensuring that your smart device is always fully charged.High quality and safety: It is made of strong rust-proof aluminum alloy material to ensure durability, stability and heat dissipation.More ports for your laptop.HDMI port supports.max3840*2160support:HDTC ,Monitor,projector.Ensure sufficient power when using.Connect the big screen to restore the true colors.Name: HubColour: grayMaterial: metalPackage Contents:1 x HubOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.