The SanDisk Extreme microSDXC memory card lets you save time transferring media with read speeds of up to 190 MB/s powered by SanDisk QuickFlow technology. With write speeds up to 130 MB/s, it's ideal for your Android smartphone, action cameras, or drones. This high-performance microSD card handles 4K UHD video recording, Full HD video, and high-resolution photos. Plus, it's A2-rated, so you can get fast application performance for an exceptional smartphone experience.