The slide mechanism has a sort of spring. If you push the slide forward, the USB connector will pop out and locked enjoyable. If you want to push it back into the case back, you push the slider slightly downwards and backwards. Already everything is safe again. Because there is no cap could contact may gather dust something if you often carries the stick in the trouser or jacket pocket. But this is for me is not a defect, because I will take the stick rare. For some, the absence of the cap is likely to be a positive aspect because you can not lose in this way.
Conclusion:
+ Stable impression
+ Pleasant snap mechanism
+ Very discreet LED (blue)
+ Good size
+/- No dust cap
From my full 5 star and I order now equal to two more.