Bests & Worsts Reviews from Amazon

5V x 2.4A = 12W Cnankcu 5V x 1.0A = 5W Apple The cube is a lil' more than 2x the size of the standard Apple cube. At 2.4A, it flows a lil' more than 2x the current of the standard 1-Amp Apple cube, so it should charge your iPhone significantly more quickly than the standard cube does. Two slots on the cube, but the 2.4A is max for the whole unit, so it gets split between them, if two devices are charged at the same time...2.4A is split in half is still more than the standard Apple charger. If you want to charge two devices @ 2.4A, just use both cubes.😉 Good value. 2 charger cubes + 2 6-ft lightening cables for $10.