I thought I had a micro-USB retractable USB: Failed this is only an extension cord with adapter tips which is not part of USB-micro USB adapter! It does not serve for the DS, not for my camera ... Results: Apart from the extension that can be used from time to time when I do not have a long enough USB cable ... If the bag is much more cumbersome than I thought. Very useful for a PC technician who will need it as a tool it must be different adapters for PC priori taken. Plugs are tidy and well protected: damages whatsoever useless!