Heya. So I've had my iMac for a while now and was wondering if there were any places to get a longer cord. Now before you jump at me with, "it's called an extension cord," I only need and extra 20cm minimum. I read around and a lot of people say you can use any C14 cord, but I wanted (for aesthetics and closure) that actual plastic part that goes into the iMac itself. At current times, the cord reaches but the stress on the cord is my main concern.