It works but the actual R/W speeds are 18/8 MB/s, not even Class 10. It should be marketed as "Sandisk Basic", not Sandisk Ultra", unless they mean ultra slow. Now is 2014 and there is no excuse for such slow card from Sandisk.*** UPDATE ***I have redone the test with NotePro 12.2" instead of using non UHS-I PC and the latest results are 32/8.6MB/s. Since the read speed hits 30, I believe the device is DHS-I ready. Still underwhelmed by the write speed though.