For USB-C to HDMI/DisplayPort products you have to make sure the host devices support DisplayPort Alternate Mode.

Move to your device’s official website to check out whether it support video output function.

First, confirm whether your device/displays support 4K@60Hz. 

Some monitors only support 4K@60Hz over DisplayPort, if you’re not sure about it, please consult the manufacturer. 

If your devices (host devices, connectors/cables, output devices) all support 4K@60Hz, then you may need to adjust your output setup. 

 - Mac OS: https://support.apple.com/en-us/HT202351

 - Windows: https://support.microsoft.com/en-us/help/4340331/windows-10-set-up-dual-monitors

 - Some monitors only support 4K@60Hz over DisplayPort, if you’re not sure about it, please consult the manufacturer!

First of all, you need to make sure that all your charging links support 100W, which means your charger, charging cable, and the device can all handle 100W charging speed.

Bear in mind that the actual charging rate may vary depending on the device, cable, and charger.

 1. Check if your router and computer are ready for high-speed internet, click here.

 2. Try out the driver.

 3. Make sure to use CAT6 and up ethernet cable.

The adapter will compatible with devices which supply OTG function. 

USB On-The-Go (USB OTG or just OTG) is a specification first used in late 2001 that allows USB devices, such as tablets or smartphones, to act as a host, allowing other USB devices, such as USB flash drives, digital cameras, mice or keyboards, to be attached to them. 

Use of USB OTG allows those devices to switch back and forth between the roles of host and device. A mobile phone may read from removable media as the host device, but present itself as a USB Mass Storage Device when connected to a host computer. 

--src: Wikipedia

However, if you want to enjoy the fast speed up to 1 Gbps / 2.5 Gbps, you need to confirm the followings:

1. Make sure your Internet environment supports 1 Gbps/2.5 Gbps speed Ethernet. (make sure router, switch, hub, or modem meets the requirements).

2. Make sure your host device supports 1 Gbps / 2.5G bps speeds.

3. Make sure your Ethernet Cable connects with the adapter is above CAT 6.

4. Make sure your network connection is active.

1. Try another USB C charging cable (if you have).

2. Make sure the USB C port of you device is in good condition/ work well.

3. Check all AC adaptor connections. See if the AC adaptor works.

4. Unplug everything, then plug in again, or try a different USB C port. 

Find the Answer HERE.