Upgraded Universal USB-C 4K Triple Display Docking Station with Charging Support for MacBook Pro Air & Windows Type C Systems (2 4K DP, 4K HDMI, 6 USB Ports, USB PD),Extended Display for macOS

To use this product the host USB-C port from your device must support DisplayPort Alt Mode and Power DeliveryUse HDMI 2.0 /DP 1.4 or above cables for optimum performanceUSB 3.1 Type-C OverviewUSB Type-C has a new feature called Alternate Modes which allows you to use non-USB connections with the USB-C cable and connection. Your device automatically uses the appropriate mode if it's supportedDisplay connection be limitedMake sure the device you're connecting to is supported and that you're using the right cableDisplayPort connection might not workTry using a different cableTry these solutionMake sure your device and cable supports the same USB-C features as the docking stationMake sure the docking station is connected directly to your host deviceMake sure the docking station is connected to the USB-C port on your host device that supports the correct Alternate ModeFor example if you're connecting a USB 3.1 Gen2Type C Alt Mode device make sure you connect to the USB-C port that supports Displayport alt mode and power deliveryPossible causesThe docking station you connected to has new features for USB-C that your host device or connect cable doesnt supportThe docking station isn't connected to the correct USB-C port on your host deviceThe device is using an external hub or dock to connect to the docking stationToo many other Alternate Mode devices or dongles are connected to your host deviceAudio/Mic RemindPlug in this USB C Docking Station sometimes will change the default Audio output device to Docking Station which means your laptop speakers will not work anymoreTo make your laptop speaker work please change in your laptop OS setting the audio output device back to laptop speakersUSB Accessories Disabled SolutionsIf you experiencing the problemSolution 1 Please unplug and re-plugSolution 2 Reset the SMC of your device