The thing is that USB-C was designed to be the universal connector, for both high and low power devices, for charging and data. Should there be a qualification: 'use the specification and standards violating magnetic adapters IF your device is X and not Y or else your macbook might get toasted and btw your warranty is now void for using it.'
Or, just 'don't use shady spec violating components that don't exist in spec for good reasons'?
> Also, do devices like that actually respect that 900mA thing, assuming they're capable of pulling that much power?
USB-C will not 'give it' power unless it conforms to certain parameters like having a resistor on the CC line. This is the reason that crappy devices which merely changed the physical ports from micro-USB to USB-C and come with a USB-C (device end) to USB-A (charge end) will not charge with a USB-C to USB-C cable. The device never got updated to request the power and the USB-C port on the charger just ignores it.
Or, just 'don't use shady spec violating components that don't exist in spec for good reasons'?
> Also, do devices like that actually respect that 900mA thing, assuming they're capable of pulling that much power?
USB-C will not 'give it' power unless it conforms to certain parameters like having a resistor on the CC line. This is the reason that crappy devices which merely changed the physical ports from micro-USB to USB-C and come with a USB-C (device end) to USB-A (charge end) will not charge with a USB-C to USB-C cable. The device never got updated to request the power and the USB-C port on the charger just ignores it.