Make the most out of your mobile device. Verbatim's Pro Plus microSDXC memory cards with A1 rating are optimized for mobile applications, launching applications faster and improving application performance. Featuring a UHS-I interface, U3 speed rating and V30 video speed class, with up to 80MB/s write speeds, Pro Plus memory cards let you maximize advanced camera modes. So even when shooting heavy-action events like snowboarding or football, or recording 4K video or multi-burst photos, you won't miss a single frame. Zoom through the editing process and experience rapid transfer rates with read speeds hitting 100MB/s. Keep those files safe while traveling to the four corners of the earth to fill the four corners of the frame - these cards are waterproof, shock proof and temperature proof. Backed by a Limited Lifetime Warranty, Verbatim creates technology you can trust. A1 Application Performance Class - able to run mobile apps directly from card with Android Marshmallow and later OS V30 video speed class - supports 4K video recording UHS-I interface, U3 speed rated Up to 100MB/s read speed Up to 80MB/s write speed Water resistant, shock proof and temperature proof Limited Lifetime Warranty