Micro USB to USB-A Cable - 3M

Fast charging cables are able to offer speeds of at least 2.4A/12W. This refers to the power output of the cable, and the higher the rating, the faster the charging speeds. Modern cables are multifunctional and often utilise improvements in USB technology to allow for rapid data transfer speeds in addition to quick charging.

For the fastest charging speeds, look for the cable’s output, measure in amps (A) or watts (W). ‘Fast’ cables are typically those offering an output of at least 2.4A/12W, but the most streamlined modern cables can be 3A/60W or, as in the case of USB-C to USB-C technology, up to 5A/100W.

Besides the output capacity of the cable, its physical properties can affect its potential charging speed. Both cable length and gauge (the thickness of the cable) can affect the speed at which a cable can charge a device, with longer and thinner cables both creating more resistance and thus slowing down the charging speed.