The real current with one port using is just 1A, not 2,1A as described by seller. Two ports - 1A for each, but in 20 minutes the device is already extremely hot, and this is even before mounting in the closed space! The construction is stupid - after you mount it into the wall, you will not be able to get it out of there. The only way is to broke the cover. Completely no chances to unlock the cover, when you have no access to the other side, mission 100% impossible :) Conclusion: this is the kid’s toy, use it just for small devices on your own risk.