An extremely fast memory that accompanies you everywhere. Ultrafast PRO Plus microSD card from Samsung sets new standards for extreme sports and action photography. The card is compatible with UHS-I speed class 3 (U3) and Class 10 and therefore is perfect for 4K UHD video recording and playback. Minimal delay in the transmission of files and at the photo shoot. Make the most of the latest 4K UHD-enabled smartphones, tablets and Action cameras. SDXC memory card. 32GB capacity. Read speed 95MB per sec. Write speed 90MB per sec. Includes microSD adaptor to convert to SD size, for compatible devices. Not backwardly compatible with SD only devices.