what can I say, a smooth 5 for what what you can do with it. and Gwschwindigkeitsmessung at USB3 is 18 MB. Underwhelming, because I use another Sony SDHC with specified 95MB and 35MB real measured in my camera. But against a Class 4 4.5 MB but already ok for use in my Xperia Tablet. So everything is OK