
My dog stumbled on a Cat5E cable that I extended with a $5 Home Depot coupler (I had to do something in a pinch). The store-bought brand immediately fell apart. These are built like a tank. The plastic and metal parts are thick and heavy. You will probably manage to dent someone's car if you throw it in the car. So far, data has been transmitted at gigabit speeds without any problems. I recommend 10/10 (although I still don't recommend tripping over extra long cables)