USB-C is probably smarter and more unified in this regard, but back in USB 2.0 land the devices negotiated how much power they need/can accept, and compliant ad

USB-C is probably smarter and more unified in this regard, but back in USB 2.0 land the devices negotiated how much power they need/can accept, and compliant adapters wound themselves down as appropriate: https://www.maximintegrated.com/en/design/technical-documents/tutorials/4/4803.html https://www.maximintegrated.com/en/design/technical-document...