There are fakes for everything, from AC plugs to amplifiers. There are even "semi-fakes" like M&K had. Same factory produces it's own run, not even tested, sells out the back.
chinese counterfeitng
I own dartzeel amp and preamp. I was checking out pricing and noticed dartzeel amp selling for $650 on ebay. I checked into this and they make it look externally the same but obviously not internally. The sellers were mainly from China. If they can make the amp look real I bet is would be an easy process to fake a cable or anything else for that matter