Extreme PRO Microsdxc UHS-I Memory Card 512 GB + Adapter & Rescuepro Deluxe (For Smartphones, Action Cameras or Drones, A2, Class 10, V30, U3, 200 Mb/S Transfer)The SanDisk Extreme Pro microSDXC is ideal for all Android smartphones and tablets, as well as drones or action cams The microSD card ensures better app performance and faster charging thanks to the existing A2 performance standard With a read speed of 200 MB s and a write speed of 140 MB s, you can transfer your data extremely quickly thanks to SanDisk QuickFlow technology Make lossless 4K UHD video recordings thanks to UHS Speed Class 3 (U3) and