Uesd this on our recent trip to Peru to protect our devices from power surges along with our converter

I could charge all my devices at once and blow dry my hair.

The total it can supply when all 4 USB ports are utilized is 3.4 amps, so don't expect fast charging if you're trying to charge 4 devices at a time, like an iPhone, iPad, Android Tablet and an Android phone

Great device if you’re traveling through a bunch of different EU/UK countries

USB ports made charging multiple devices at once very easy!