PNY 128GB PRO Elite Class 10 U3 V30 A2 microSDXC Flash Memory Card – Read Up to 100MB/s, Write Up to90MB/s, 4K UHD, Full HD, UHS-I, Professional Performance, Smartphones, Action Cameras​.PNY PRO Elite Class 10 U3 V30 A2 microSD Cards offer peak performance for smartphones, tablets, drones, action cameras,surveillance cameras, gaming consoles, and more. With a read speed of up to 100MB/s and write speed of up to 90MB/s, users canquickly capture and share high resolution content. U3 technology is perfect for 4K Ultra HD videography and HD photography, makingthese cards the perfect solution by which to capture stunning 4K video, HD photos, music, apps, and more. What’s more, the PRO ElitemicroSD Flash Memory Cards feature V30 Video Speed Class, ideal for 4K Ultra HD video at 4096x3072 format, allowing users tocapture high quality content on today's 4K Ultra-HD devices. Additionally, these cards are rated A2 which optimizes the PRO ElitemicroSD for app performance; allowing users to run apps directly from the microSD card, delivering faster app launch and performancethan ever before. With PNY's PRO Elite Class 10 U3 V30 A2 microSD cards, users can experience memories that feel as real as the daythey captured them.