I spent five hundred dollars for a 16 GB flash drive that was white in color. I like. I'm not sure about the black one, but the white and blue version has a light bulb that actually illuminates the bottom of the case. I don't know if that happens with the black one. First of all, it is quite bright, and secondly, the plastic is see-through (from the front to about two thirds of the size of the flash drive, and from the back to about one third). My laptop's USB connector is located on the back, so the light does not impede with its operation. However, I believe that it will be noticeable if it is in plain view. There are no issues in either the USB 2.0 or the USB 3.0 versions. Even though the switch that controls the output of the connector is rather flimsy, this does not worry me very much at all.
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