@GB This USB-C hub expands device connectivity with 8 ports, including 4K/30Hz HDMI for external display, high-speed USB 3.0 and USB 2.0 for peripherals, and a PD port for charging while in use. It also has a versatile USB-C port for data transfer, SD and TF card slots for easy data access, and an RJ45 port for faster internet connectivity. Specifications: Color: gray Material: aluminum alloy + ABS Main interface: Type-c Expansion interface: HDMI * 1.100 Mbps RJ45 * 1, USB 2.0*1, USB 3.0*1, PD charging interface * 1,Type Cdata interface * 1.TF/SD card reader * 1 Package includes 1*USB-C hub HDMI port: This port allows you to connect an external monitor or display to your device with a maximum resolution of 4K @30Hz. RJ45: This port allows you to connect to a wired network for faster internet connectivity. PD (Power Delivery): This port allows you to charge your device while using the hub. The power delivery capacity will depend on the hub's specifications and your device's power requirements.Max 87W. TF/SD card slot: This slot allows you to read and write data to a microSD card. USB 3.0 + USB 2.0: This port supports high data transfer speed and allows you to connect external devices such as U drives, and can also be used to connect external devices such as a mouse or keyboard. Good in details. Aluminum shell:Good heat dissipation, wear resistance Quality Port:Durable, stable transmission LedIndicator:Softlightingindicatorshowsworkingstatus. User Manual Main type interface, connect to computer/mobile phone/tablet Other interface connection methods:USB and type C port: connect USB device via USB /type C port, like your USB mouse,keyboard,U disk and etc. rj45 port:plug network cable via rj45 port,then use the internet. PD port:Use adapter to connect the power supply, then connect the PD port, then can charge the computer, if want to charge the phone at the same time, use the USB port to connect to the phone. HDMI port:Please check if your computer USB C port support display port,if support, connect your monitor and the computer via the HDMI port,then you can use it. TF/SD:put your TF/SD card into the interface, then you can read the data.please do not read two card at the same time, read it one by one. Compatible models: Compatible with most computers, tablets and mobile phones with Type C interface. Before purchasing, please confirm whether your Type C interface supports video output, charging, and data transmission Note: An expansion dock is a useful device for expanding the interface options of your notebook computer. However, it's important to ensure that your computer's interface supports video output, charging, and data transmission for the expansion dock to function properly. If your computer's interface is not fully functional, there may be limitations in the features that the expansion dock can offer. For example, if your computer's Type C interface only supports charging, the expansion dock won't support HDMI and data transmission. This is not a quality issue, but rather a limitation due to your computer's interface capabilities. It's important to confirm your computer's interface parameters before purchasing an expansion dock to ensure it meets your needs.