What is the class on this device
Is this class 10 or better? I don't see any spec how good of a performance for this device is.
While there is no marking about class/speed, the info on the packaging does indicate it is compatible with both USB 2.0 and USB 3.0 (the info in the original sales offer only indicated USB 2.0 compatibility). This does not answer your question, but hope it helps anyway.