If you do not use the SD card slot very often, this is the perfect product for you. It sits flush with the device and you will not even notice it is there. Doubled up my storage from 128 gigs to 256 GB. However, if you plan to run applications off of it, don't buy it. I use it for storing movies and media consumption. Using it for running applications will just deteriorate its life and the app might not even run smoothly due to read/write speed bottleneck. All-in-all good purchase.