Anker

What should I do if the display does not reach the expected resolution or refresh rate when connected through the hub? (A210C)

Please try the following troubleshooting steps:

Check the DisplayPort version supported by your laptop's USB-C port. The resolution and refresh rate available through the hub may vary depending on whether the port supports DisplayPort 1.2, 1.4, or 2.1.
Test the hub with another laptop that has a USB-C port supporting DisplayPort Alt Mode to see if the issue persists.
Try a different HDMI or DisplayPort cable or another monitor. You can also lower the resolution or refresh rate.
Disconnect the hub from your laptop and unplug all devices from the hub. Wait at least 5 minutes, restart your laptop, and reconnect all devices. Then check whether the issue is resolved.

Windows OS

Host USB-C Port Specification	DP 2.1		DP 1.4		DP 1.2
DSC* Specification	DSC	No DSC	DSC	No DSC	No DSC Supported
Port Type	DP/HDMI		DP/HDMI		DP/HDMI
Single Display (Max Supported)	1080P@240Hz 2K@240Hz 4K@144Hz		1080P@240Hz 2K@240Hz 4K@144Hz		1080P@240Hz 2K@240Hz 4K@120Hz

Dual Display (Max Supported)	Dual 1080P@240Hz Dual 2K@240Hz Dual 4K@60Hz	Dual 1080P@240Hz Dual 2K@144Hz Dual 4K@60Hz	Dual 1080P@240Hz Dual 2K@144Hz Dual 4K@60Hz	Dual 1080P@60Hz Dual 2K@60Hz Dual 4K@30Hz	Dual 1080P@60Hz Dual 2K@60Hz Dual 4K@30Hz

* DSC = Display Stream Compression

macOS

MacBook Type	M1/M2/M3/M4/M5 Series	MacBook Neo
Port Type	DP/HDMI	DP/HDMI
Single Display (Max Supported)	1080P@240Hz 2K@240Hz 4K@144Hz	1080P@240Hz 2K@144Hz 4K@60Hz
Dual Display (Mirrored, Max Supported)	Dual 4K@30Hz	Dual 4K@30Hz

If all of the steps above cannot help you locate and resolve the problem, please contact Anker Customer Support for further assistance. Briefly mention the steps that you’ve already tried for a faster solution.