When I got him a lot to me already very small box. The Ladegrät is actually very compact - I had imagined, given the 40W power slightly larger - well, I was pleasantly surprised. He is actually in approximately 4 mm longer than a plastic card, which is famous for the grocery stores (customer cards, etc.).
Now, the technology you do not dwell here, I think - it loads very efficiently, is only partially warm while charging a device (more I have not tested). The supplied cable (Warning: there is a version with 5 USB cables included and one without) look very neat.
Only criticism: The USB ports are fairly strictly applied. I mean, when you plug in you can feel but a resistance. OB the one likes it or not, should not be subject here - at least not disturb me (yet).