While USB ports and Thunderbolt ... USB-C connections (USB4) can transmit data between devices at speeds of up to 40Gbps (the ...

The connectors all look the same (technically known as a “Type-C connector ... speed—with USB-C maxing out at 10Gbps (usually 5Gbps) compared to the 40Gbps of Thunderbolt 3 and 4.

Fear not, for basic iPhone charging most USB-C cables will be fine. But some are finer than others. Macs use Thunderbolt cables that have the same Type-C connector as USB-C so look the same but ...