03-23-2019, 03:37 AM
The "USB current 2x" setting will only appear for older Pi models for example Pi-1B and 2B that default to 600mA total USB peripheral current draw and support the setting to enable it to be doubled to 1.2A. The newer Pi models for example 3b and 3B+ already default to 1.2A.
Here are the official power specs for all Pi models.
https://www.raspberrypi.org/documentatio.../#pi-power
Here are the official power specs for all Pi models.
https://www.raspberrypi.org/documentatio.../#pi-power