What Wattage Does a USB-A to USB-C Cable Support?
It depends on the connector pairing, not the cable alone. On this cable, USB-C to USB-C reaches its highest rated wattage, USB-A to USB-C reaches a lower cap. Always match the pairing to your charger and device for the speed you expect.
The figure that matters is the pairing, so it helps to see the rated maximums laid out.
Rated wattage by pairing
On this magnetic cable, USB-C to USB-C reaches 240W max, USB-A to USB-C reaches 100W max, and both Lightning variants are limited to 27W max. If you want the fastest charge, choose the USB-C to USB-C pairing deliberately; a USB-A to USB-C pairing will charge at its own lower rated cap. /products/magnetic-cable-cbl-002
Why the pairing decides it
Each connector pairing has its own rated limit, so the same cable delivers different maximums depending on which ends you plug in. Match the pairing to what your charger and device support, and you'll get the speed that pairing is rated for.