Will this extension cable enable a ground connection?

I want to make sure that when I buy this, that the third prong will actually create a connection with the USB-C connector through my 87W power supply and effectively ground my MacBook Pro? I ask because while working with my audio interface I get a 60Hz buzzing sound that goes away when I'm physically in contact with the MacBook.

Power Adapter Extension Cable

Power Adapter Extension Cable

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1 Answer from the Community

  • Answer

    Yes it will !