400GB SanDisk Ultra microSDXC UHS-I Card by Western Digital

This is a Press Release edited by on 2017.09.08

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Western Digital Corporation (WDC) announced its 400GB (*) SanDisk Ultra microSDXC UHS-I card, the highest-capacity microSD card for use in mobile devices.

Two years after introducing its 200GB (*) SanDisk Ultra microSDXC card, the company has doubled the capacity within the same form factor. Keeping up with the demands of today's mobile-centric lifestyle, this microSD card provides consumers with the freedom to capture, save and share photos, videos and apps, and enjoy offline content - without worrying about storage limitations.

"Mobile devices have become the epicenter of our lives, and consumers are now accustomed to using their smartphones for anything from entertainment to business. We are collecting and sharing massive amounts of data on smartphones, drones, tablets, PCs, laptops and more. We anticipate that storage needs will only continue to grow as people continue to expect more sophisticated features on their devices and desire higher quality content," Jeff Janukowicz, VP, research, IDC. "We estimate mobile device users worldwide will install over 150 billion applications alone this year, which require a ton of memory on all of our favorite devices."

The company achieved this capacity breakthrough by leveraging its proprietary memory technology and design and production processes that allow for more bits per die.

"We continue to push technology boundaries and transform the way consumers use their mobile devices," said Sven Rathjen, VP product marketing, Western Digital. "By focusing on achieving new technology milestones, we enable consumers to keep up with their mobile-centric lifestyles with storage solutions they trust."

For Android smartphone and tablet users, the card can hold up to 40 hours of Full HD video and features transfer speeds of up to 100MB/s (**) to deliver performance. At this transfer speed, consumers can expect to move up to 1,200 photos per minute (1). Additionally, the 400GB (*) SanDisk Ultra microSD card meets the A1 App Performance Class specification, which means that the card can load apps faster. (2)

Through the updated SanDisk Memory Zone app, users will have greater control over their mobile device's memory storage. The app, available for free download from the Google Play store, is compatible with most Android-powered devices and allows users to locate, organize, transfer and backup data, including tagged content from Facebook and Instagram. (3)

The 400GB (*) SanDisk Ultra microSDXC UHS-I card features a ten-year limited warranty (4) and will be available at the company website and other major retailers at a U.S. MSRP of $249.99.

(*) 1GB = 1,000,000,000 bytes. Actual user storage less.
(**) Up to 100MB/s read speed; write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.
(1) Based on 4.1GB transfer of photos (avg. file 3.5MB) with USB 3.0 reader. Results may vary based on host device, file attributes and other factors.
(2) Results may vary based on host device, app type and other factors.
(3) Social media account registration may be required. Social media services may be changed, terminated or interrupted at any time and may vary by country.
(4) See