This is the latest version of the microSD cards Class 10. I purchased it for Asus MemoPad HD 7 tablet which I use mostly to play movies for my son. Since all of our movies are in HD I wanted to ensure I have a fast storage card so movies can play smoothly.This is also very important when taking pictures or videos. The faster the SD card is, the faster the device will process and store the picture and release the camera for the next picture.. with Android 4.2 JellyBean, Google introduced burst picture taking which allow you to long press the shutter and the camera will take several pictures in a row. This is great if you are trying to shoot something in motion. A fast SD card is essential for this feature to work properly.