The SanDisk Ultra microSDXC UHS-I card is perfect for recording and watching full HD video Transfer Speeds of up to 100MB/s [3] Blazing transfer speeds mean that your content moves fast letting you move up to 1200 photos in 60 seconds [4]. Ideal for Android Smartphones and Tablets SanDisk cards are compatible with Android smartphones and tablets. Load Apps Faster with A1-Rated Performance [5] Rated A1, the 400GB SanDisk Ultra microSD card is optimized for apps, delivering faster app launch and performance that provides a better smartphone experience. Full HD Video Capture [6] Class 10 speed allows you to shoot full HD video and high-quality photos. Designed to Withstand Harsh Conditions Built to perform in all conditions, this durable microSD card is waterproof, X-ray proof, shock-proof, and temperature-proof [7]. SanDisk Memory Zone App for Easy File Management The SanDisk Memory Zone app enables you to view, access, and back up your files in one location. You can also free up space from your smartphone by moving files to your microSD card.