Extreme Performance - U3, V30 speed class performance with read speeds up to 200MB/s, and write speeds up to 150MB/s when used with PNY Performance Prime microSD Card Reader138 Record and transfer videos, photos, music, files and more from microSD enabled host devices such to laptop and desktop computers using the Performance Prime Card Reader for extreme speeds facilitating accelerated workflows when editing content A2 App Performance enables apps to run directly from the microSD card, delivering faster app launch and performance. A2 provides minimally 4000 IOPS (Read) and 2000 IOPS (Write) Compatible with Android smartphones and tablets, action and surveillance cameras, drones, computers and more Included SD adapter for compatibility with SD enabled host devices including DSLR cameras, video cameras, desktops, and laptops