Connection Steps: Insert the USB-C male plug of the 3-in-1 cable to the USB-C port on the device ①. Then connect the HDMI and the black USB-A cables to the PC respectively. Finally, connect the USB charger cable to the power adaptor and then switch on the power. Connect via the 3-in-1 Cable. Generally, the device can be powered on when the The HDMI and Thunderbolt ports on your Mac mini support video output, so you can connect an external display, a projector, or a high resolution TV. For Mac mini with Apple M2, you can connect up to two external displays in the following configurations: Connect one display with up to 4K resolution at 60 Hz using the HDMI port. Connect one NOTE: The Dell Docking Station WD15 only works with DisplayPort over USB-C or Thunderbolt protocols and is not compatible with all USB-C ports. Table 4. Symptoms and solutions Symptoms Suggested solutions No video on the monitors attached to the HDMI, miniDP port, or the VGA port on the docking station. Connect the Adapter with HDMI Cable and USB-C Port. Plug the USB-C end of the adapter into your Android device's USB-C port. Connect an HDMI cable to the HDMI end of the adapter. Connect the other end of the HDMI cable to an HDMI-enabled display, such as a TV, monitor, or projector. Troubleshoot external monitor connections in Windows 10. Windows 10. Before considering troubleshooting options, make sure your device is up to date. Select Start > Settings > Update & Security > Windows Update , then select Check for updates. If you need help setting up your external monitors, see How to use multiple monitors in Windows 10. It is recommended to use a power bank or an adapter to supply power to the monitor. Once the power source is connected and the monitor is powered on, simply use a USB-C cable to connect your smartphone to the monitor and easily expand the phone's display to a 15.6-inch/16.1-inch FHD wide-view screen! It does mention back USB-C port is the only Thunderbolt combined one. PDF pg 20 (marked page 6) Block Diagram imply DP (DisplayPort) is only on the rear USB-C port. This I can only assume your Thunderbolt adapter/splitter is not a compatible 'DisplayPort hub' & suggest looking at another one. Kindly proceed with the below instructions on how to use a USB Hub or Docking Station for setting up multiple monitors: First, ensure that all the monitors and the device are getting sufficient power. Now, connect your docking station to the PC using USB-C (3.1 or higher) or a Thunderbolt cable. Next, plug in each data cable to the device’s ChtsL.