Please note:Please make sure your device is compatible with the extension, otherwise it cannot be used. The Type-C interface of the laptop must be Thunderbolt 3 or support the USB3.1 protocolPlease make sure your device is compatible with the extension, otherwise it cannot be used. The Type-C interface of the laptop must be Thunderbolt 3 or support the USB3.1 protocolDifferent model has different interface and appearance, please choose suitable model before purchase:(1) 8 in 1 Model :RJ45 100Mbps + HDMI 4K+USB C 3.1+SD/TF+2*USB3.0 + PD USB-C Mouth(2) 6 in 1 Model:HDMI 4K+SD/TF+2*USB3.0+PD USB-C Mouth(3) 5 in 1 Model:RJ45 100Mbps +HDMI 4K+2*USB3.0+PD USB-C Mouth(4) 4 in 1 Model :HDMI 4K+USB3.0+USB2.0+PD USB-C MouthHDMI supports 4K 30HZ, VGA supports 1080P,PD charging: supports maximum of 87W.IMPORTANT NOTE- When connecting to laptop, Do NOT support charging cellphone through USB-A or USB-C female port due to limited current.- Please provide power supply when connecting to power-hungry devices; Only support connecting 1 HDD/SSD at a time.- To prevent Wi-Fi interference, you could wrap the line body near type-c port with foil paper, or using the router of 5GHz frequency. Also, please unplug ethernet cable and PD charging cable from adapter when not using.- For laptops, we suggest connecting to non-original PD power adapter such as Apple, Dell power adapter to ensure normal use. (1) 8 in 1 Model : Extensive 8 in 1 USB C HubThe usb-c hub multiport adapter includes fast Ethernet/RJ-45 Port, Type C 3.1 data transmiion port & 87W PD charging port, 2 USB 3. 0 Ports, 4K HDMI video output. Micro SD & TF card reader which can help you to solve 8 troubles in 1 hub. High Speed & Reliable Data Transfer with USB 3.0The usb c dock supports transmiion speed rates up to 5 Gbps which can connect USB flash drive, hard drive, keyboard, mouse, printer,thumb drive for effortle data transfer. Fast 87W Power