Charles C. Moy
The micro SD card was extremely fast.  Writing and read files were very fast even on a slow USB 2.0 interface.  Mechanically, the card is tight in the adapter.  Needs a screw driver to get it back out of the adapter.  Tried on another two adapters with the same results, tight fit.  If user plan to use this as a normal size SD card, it is an excellent card.  If one plan to switch between &#34;phone&#34; (micro SD card) and camera (normal size SD card), then the tight fit might be a problem.  Vender service was excellent.  shipment was faster than expected.  Would buy it again even with the tight fit.  It was an excellent value for a very fast card (camera can shoot burst mode without slowing down to write to card).