It is a good MSH-TR-018A (Mei Shun He) product. Why it is sold as "mumbi" I have no idea, it is also nowhere "mumbi" plan. Well made, solid, stable, the plastic is for my taste to glänzrig, matt would be nice, but by totally makes the adapter delivers what it promises, and I think that is most important. 5V 2.1A max range for all imaginable USB devices that are on the market and will be. 2.1A is the maximum power that can provide the adapter; So you can the adapter for devices which only 300mA, 500mA, 1500mA, etc. need to take without problems. The load times of my Motorola Rokr / Defy mobile phones are the same as with the original chargers. Actually I bought the adapter for my zukunftiges Navi who needs more than 1500mA. Absolute buy recommendation.