Reports Power Surge on the USB Port Whenever Connecting Through DA300 Adapter
Summary: The following article provides information about the power surge message reported when you attach an external device through the adapter. This is happening when using the Dell USB-C Mobile Adapter (DA300). ...
Symptoms
Is the warning message power surge on the USB port showing on-screen? Do you see it whenever you attach an external device to your laptop through the Dell USB-C Mobile Adapter (DA300)? The external device can be seen in Device Manager, but it malfunctions.
Cause
The default setting for a Type-C Connector Power option is 7.5 W on some Dell mobile platforms. Attaching an external device through the adapter may exceed the power limitation. This causes the symptoms that you are seeing. Not all hard drives, solid state drives, or optical drives can be supported over the DA300. The power requirement of the external device may exceed the power limitation of the port.
Resolution
You must connect a power supply or the AC adapter directly to your laptop if your Dell laptop is limited to 7.5 W over USB Type-C. However, on other laptops Dell offers a BIOS power option for the Type-C Connector. You can change the power output of the type-c connector from 7.5 W to 15 W.