I too have a Nexus 7, so I'd love to hear if you figure out whether it's the charger or the cable that charges your N7 faster. I'm always on the lookout for the fastest charge! Right now, based on the research I've done, I'm pretty confident that as far as the cables go, nothing is going to be faster than the Kopi's. However, it looks like the Fosman's are quite comparable, since they appear to be designed/engineered in the same way.