How to tell if an adapter is universal with a standard adapter

The following conditions need to be met:

1, compared to the new adapter connection computer interface, must be the same interface with the Huara adapter.

2, look at the adapter's label in the "Output/output" Item after the number, the legend shows 20v-4.5a,20v for this adapter output voltage, the new adapter must be the same as the standard adapter, to use; 4.5A output current for this adapter, The new adapter must be larger than the standard adapter before it can be generic.

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