Specifically in a macOS / iOS household (i.e. not looking for solutions that calls for Windows software).
I have a number from varying sources and definitely they are not equal. For example:
- The C-to-C cable that came with an Aukey power bank can deliver data but only at ~50Mbps however it can do 45W of power just fine.
- The C-to-C came with my Samsung T5 SSD can do 500+ Mbps but I'm not sure how well it can charge power banks.
- Apple's C-to-C cable bundled with recent MacBooks can do 87W (assuming from the capacity of the power brick that came with it), but I've read somewhere that it could only do USB 2.0 speed.
- A Baseus C-to-Lightning cable that charges an iPad Mini fairly quickly (using a MacBook charger), but never heard of "double beep" when plugging any iOS device indicating fast charging enabled.