I have the same cable and also got sparks with it. I ended up moving the whole PC closer to my "VR Room" and then using the same extension cables to get my main monitor and a USB hub connected to my PC. Dunno if anyone needs to hear this but figure'd I'd post as it surprised me / seems relatively new. So when I got my CRG9 it knocked my PC off the desk so I had to keep it behind me about 20 ft worth of cable length away.
DisplayPort (10m) ($98.99) - ATZEBE Fiber Displayport Cable 30ft, Fiber Optic Displayport 1.4. This cable diameter is remarkably small, but it performed equally to the 5m LINKUP cable with a wider gauge. The connectors / cable heads produced heat as soon as the cable began transmitting data. We found 4 Reddit mentions of ATZEBE Fiber Displayport Cable 60ft, Fiber Optic Displayport 1.4 Cable Support 32.4 Gbps, [email protected], [email protected], Slim and Flexible Fiber DP to DP Cable.Here are the top ones.