Nice small, but with restrictions

The stick is so small that you could very well take him in the wallet to have it always with you. However, it is in operation such hot that you can not touch easily with your fingers to remove him. One needs therefore the supplied tension band, and that raises the size advantage then partially back on.
For operation on a USB hub that part is not suitable because it draws too much current. It is a pity that most manufacturers still do not indicate the maximum demand or on the Hub suitability.
Therefore only 3 stars.