Designed with the Application Performance Class 1 (A1) rating, the 400GB Ultra UHS-I microSDXC Memory Card from SanDisk has been optimized to give Android users an improved mobile experience, delivering faster mobile app performance. The A1 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions.

Aside from the benefits for mobile users, this card can be used for recording photos and Full HD video, has a capacity of 400GB, is compatible with the UHS-I bus, and features a speed class rating of U1, which provides minimum write speeds of 10 MB/s. In case your device does not support the UHS-I bus, this card also supports the Class 10 standard, which also features minimum write speeds of 10 MB/s. When downloading content from this card, it is possible to achieve read speeds of up to 100 MB/s.

Built for extreme conditions, SanDisk's 400GB Ultra UHS-I microSDXC Memory Card is water, shock, temperature, and x-ray proof. SanDisk's Memory Zone app is available as a free download from the Google Play store and included is an SD adapter, allowing this card to be used in card readers or devices that have an SD slot.