That is not how devices like this work; plugging a 5V 3A device into a 5V 1A port means you can only pull 1A. Going beyond that will either trip a fuse on the board or cause the port to shut off, or potentially keep working with diminished voltage.

If it is USB PD or QC then the devices may negotiate a higher voltage, but for standard hubs like these it’s most likely to just use a USB A port and 5V.