This SD card has a great speed, the speed is about 48 MBPS reading speed and 10 MBPS writting speed, the SD card is of class 10. The SD card has a warranty of 10 long years. Other companies do not offer 10 years of warranty they offer warranty of 5 years only. The apps and the files get transferred really fast. And this also saves time. The SD card is compatible with every phone that supports SD card even in Blackberry phones. The colour of the SD card is also good. The SD card best works with Samsung devices. The SD card is available from 16 GB to 128 GB. The SD card is easily available online at the price of about 350INR. If one is thinking to buy a SD card then it is one of the best SD card.