Transfer data to PC with USB at 12Mbps

Ok, so here are the details: An MKRZero board connected with a USB cable to a computer and nothing else.

I can send data to the computer over the USB using the Serial interface - eg. Serial.write(). However I assume that is limited to 115200bps.

Is possible to send data over the USB at higher rates? For instance can I achieve the 12Mbps transfer rate which USB 2.0 supports. If yes, how?