A charging cable is a cable that transmits power from a power source, such as a wall adapter or USB port, to a charging device, such as a smartphone, tablet, or laptop. Depending on the device you need to charge, charging cables come in a variety of lengths and kinds, including micro-USB, USB-C, and Lightning, to name a few. They are a key component of contemporary technology, ensuring that our electronic gadgets remain energised and ready to use.