I chose this item because of the speed of the memory and also because of the SanDisk brand and I wasn't disappointed.  The memory works fine in my Motorola Razor-M cell phone allowing me to store movies, pictures, and music that I can play on my phone.  The adapter, on the other hand, feels flimsy and fragile.  I had trouble inserting it into two different readers and even then it felt like like it was going to break.  I have several other adapters and this adapter feels like the material is much thinner than the others.  Having said that, I didn't purchase the memory for the adapter I purchased it for the speed rating and compatibility.  All things being equal I would consider purchasing the memory again.