Safely charging USB Type-C device with older charger

I have found that USB-A to USB Type-C (sometimes referred to as “Legacy”) cables must contain a 56K ohm resistor. It is required to indicate to the phone/device to fall back to “Default USB Power” when charging from a plain USB A port on a PC/docking station or older charger.

Do the Powerline+ cables contain the resistor?

What does it do when the cable is plugged into a charger capable of fast charging such as a PowerPort+1 port or PowerDrive+1 port?

Most Anker usb c cables have the proper resistor installed, if you go to Amazon they will state in the title usually which resistor they have.

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