WHERE TOP SPEEDS MEET HIGH CAPACITY

SanDisk Extreme PRO microSDHC/microSDXC UHS-I memory cards now come with up to 128GB of storage for uncompromising smartphone, tablet and camera performance. Capture 4K Ultra HD and Full HD videos and enjoy transfer speeds of up to 100MB/s so you can shoot like a pro and still experience world-class responsiveness from your phone. Class 10, UHS-I Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings mean your videos can meet today's highest resolution standards.

Pro performance of up to 100MB/s read and 90MB/s write, for faster transfer and capture
For Android smartphones and tablets and interchangeable-lens cameras.
Records 4K UHD and Full HD video.
A1-rated for faster app performance.
Shock-, temperature-, water-, and X-ray proof.



 EXTEND YOUR PHONES'S INTERNAL MEMORY

A1 Application Performance Class is a newly defined standard from the SD Specification 5.1 and 6.0 which not only define sequential Reading Speeds but also mandates a minimum IOPS for reading and writing. Class A1 requires a minimum of 1500 reading and 500 writing operations per second.
The A1 supports the Adoptable Storage feature on Android phones running Android 6.0 Marshmallow and above version. It will convert your microSD as a part of your internal phone memory.
Adoptable storage formats your microSD card as a part of the system using the Ext4 file system and 128-bit AES encryption. This new partition becomes part of the system and the primary storage location for app data. Where before you might only have had 10-12GB of storage available on a "16GB” phone, you could have around 70GB if you adopt a 64GB microSD card. Data will be distributed to the card and internal storage automatically.
The A1 spec allows the new card to manage random read input-output access per second (IOPS) of 1,500 and write IOPS of 500, so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles and in-app permissions. With this in mind, the new SanDisk Ultra microSD card with A1 is designed to provide consumers a faster, more powerful app experience using cards.



 PERFECT FOR YOUR ACTION CAMERA
SanDisk cards are compatible action cameras and drones, and are recommended by GoPro for use with the Hero, Hero3, Hero3+, Hero4, and Hero+ LCD9.