A more powerful PC power cord may be needed for high-end gaming desktops, especially those with strong graphic cards and processors that draw a lot of current like those rated at 10a 125v. For example, the standard nema 5-15p to c13 power cord should work well enough in most cases but if you have a gaming PC with high power requirements then it might be worth considering using thicker wires such as those found on a 16AWG or 14AWG cable which will provide better stability and electrical safety.