SANDISK ULTRA microSD UHS-I CARD Fast for better pictures, app performance and Full HD video. The SanDisk Ultra microSDXC UHS-I card is perfect for recording and watching Full HD video, with room for even more hours of video. Transfer speeds of up to 100MB/s ensure that you can move all your content blazingly fast—up to 1200 photos in just one minute. Ideal for Android-based smartphones and tablets, this card’s A1 rating means that you can load apps faster too.