Capture more fast action and record more Full HD or 4K UHD video with your Android based smartphone, interchangeable-lens camera, drone or GoPro action camera. Rated A1 for faster app performance to launch and load apps faster than ever before. The SanDisk Extreme microSDXC and microSDHC UHS-I Cards are built tough for extreme durability under challenging environmental conditions. Extreme speeds let you capture every detail of adventure and take the wait out of transferring your videos between devices. Capacity: 32GB. Read speed: 80 MB/s, write speed is slower.