1:Please ensure that your device has Thunderbolt 3/4 or USB-C 3.1 Gen2 or higher ports that support “Power Delivery, DisplayPort, and Alternate Mode.” These full-featured USB-C ports should support display, charging, and data transfer protocols. If, after purchase, you find that the screen extension function is not working, please check whether your laptop's USB-C port supports the above-mentioned features.-------If you are unsure, you can contact IAVKYU.

2:The screen resolution will only be optimal if your laptop is a DP1.4 source. Please ensure that your device supports 4K display (for both the external screen and laptop simultaneously) and uses HDMI 2.0 or higher specification cables.----Windows OS Guide:Right click desktop> Graphic Setting> Display> Extended Desktop> Resolution Settings-------Mac OS Guide:Apple logo>System Preferences>Display>Mirror Display(Yes or Not)>Resolution Settings

3:single display(Windows): 1).The single DisplayPort connection can achieve a resolution of 8K@30Hz or 4K@144Hz/4K@120Hz/4K@60Hz ,A single connection via HDMI1/HDMI2 can achieve a resolution of 4K@60Hz(the laptop graphics card source is DP1.4);2).A single connection via DisplayPort or HDMI1/HDMI2 can achieve a resolution of 4K@30Hz or 1080P@60Hz (the laptop graphics card source is DP1.2);

4:Dual display(Windows):Connecting HDMI 1/HDMI 2 + DP allows for dual 4K@60Hz resolution (the laptop graphics card source is DP1.4);2).Connecting HDMI 1/HDMI 2 + DP allows for dual 1080P@60Hz resolution (the laptop graphics card source is DP1.2);

5:Triple display(Windows):1).Connecting HDMI 1 + HDMI 2 + DP allows for resolutions of 4K@60Hz + 4K@60Hz + 4K@30Hz (the laptop graphics card source is DP1.4);2).Connecting HDMI 1 + HDMI 2 + DP allows for a resolution of 1080P@60Hz + 1080P@60Hz + 1080P@60Hz (the laptop graphics card source is DP1.2);

6:macOS Single Display, Dual Display, Triple Display:1).Single connection via DisplayPort can achieve a resolution of up to 4K@144Hz.HDMI1/HDMI2/DP for single, dual, and triple displays can all achieve 4K@60Hz (the laptop graphics card source is DP1.4);2).HDMI1/HDMI2/DP for single, dual, and triple displays can all achieve 4K@30Hz (the laptop graphics card source is DP1.2)

7:All Mac devices only support Mirror Mode: AA, AAA, AAAA and Extend Mode: AB, ABB, ABBB. It does not support A-B+C or A-B+C+D, which are only supported on Windows laptops.If mirroring displays on a Windows system, the monitor's resolution will always match that of the laptop.

8:1).This product does not include a charger or cables;2).The USB C PD (charging port)only supports power supply and does not support screen extension;3).If you want fast charging, please use a 65W or above power supply;4).For some laptops, if the PD port cannot charge, please contact IAVKYU.

9:The hub requires 7-8W of power consumption for the other ports to function properly. It’s best to keep the hub in a charging state to ensure it works optimally. If a slow charging warning appears, you can ignore it.

10:This docking station is only applicable to laptops with built-in USB-C ports. It cannot be used with converters (?) such as USB to USB-C converters, HDMI to DVI, HDMI to VGA, etc. The HDMI, VGA, and DP cables must not exceed 3 meters.