Stefan Monnier <[email protected]> writes: > Indeed. I wish my USB cables came with a little switch to control > whether to connect the data wires or not (would beat the hell out of > trying to remember which cables are power-only and which aren't).
Charging cables without any data wires are a thing with legacy USB, but modern USB-C cables always include the USB 2.0 (480 Mbit/s) TX/RX wires for Power Delivery (PD) negotiation, or they are not compliant. The distinction between "data" and "charge-only" cables in USB-C is whether there are additional wires for multi-gigabit speeds or only the legacy "high-speed" capability. OTOH, many phones still only support USB 2 speeds, so a thicker and more expensive cable does not bring any additional benefits for data transfer.
