Material: The material is pretty good. I expected it to be made out of cheaper materials but it's actually pretty good. It'd be better if the connector is made out of rubber but for it's price and performance? You're already getting a great deal. Quality: The quality is great! It's an optical fibre which is relatively fragile compared to copper but as long as you're not bending them on sharp angles then it should be fine. The source connector gets warm but it would only happen on intense activities like benchmarking. I doubt that it would damage the cable in the long run as the material it's made good. Performance: It performed well, it didn't show any problem on my display. I can only test it with a 1440p 180hz monitor but so far, it is great! Overall, I'm very satisfied with my purchase! It exceeded my expectations, especially for its price. The customer service is also stellar, they are very accomodating, honest, and helpful. They always responded to my inquiries. They are amazing!