A power cable is a cord that carries electricity from a power source (like a wall outlet or a battery) to an electrical device, allowing it to receive power and work properly. Full definition
Power cables for case fans do connect the lower panels, but they're arranged so that the cable is long enough to allow the panel to be laid on the floor. (digitaltrends.com)
The right speaker also houses the 3.5 mm audio and USB power cables, which are about five feet long. (heavy.com)
Once locked into place, you connect a single power cable from the back of the dock to an outlet and you're in business. (businessinsider.com)