the Professional GOLD UHS-II microSDXC Memory Card from Lexar delivers the performance needed to capture 4K and Full HD video without dropping frames, as well as raw phots and rapid-fire shutter bursts. It features a storage capacity of takes advantage of the UHS-II bus to support maximum read speeds of 280 MB/s and maximum write speeds of 180 MB/s. Thanks to the V60 Video Speed Class rating, minimum write speeds are guaranteed not to drop below 60 MB/s. Built for extreme conditions, this card can resist temperatures ranging from -13 to 185°F and is backed by a limited 10-year warranty, Aside from support for UHS-II, V60, and U3, Lexar built this card with support for the Application Performance Class 1 (A1) spec, which includes optimizations 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.