There is a one.35mm DC port for an external power supply but its linked directly to the 5V line Therefore if you need to externally power, we propose prying open the case and chopping the red 5V line within the USB https://lexiesswl736747.tblogz.com/top-guidelines-of-inland-usb-type-c-to-usb-type-c-cable-10-ft-2-pack-42916302