I just wrote a pretty lengthy review on another product, but couldn't have completed the install without this cable. This is probably the thickest cable I have ever worked with and was both heavy and heavy duty. It's much thicker than the original Tesla cable I had used. I think that's only a good thing, considering the voltage going through this. It was somewhat challegning getthing the inner cables installed inside of the Tesla charger, but I think it would be a lot easier to do a second time. I've purchased some other VEVOR products in the past (machines with motors) that were trash, so I was pretty apprehensive about buying something this importnat/critical, but was really high quality. This is really heavy duty and competitively priced vs. the other options. I am running 40A through it just fine and believe it was rated for 50 when I looked at the documentation.