Extreme sports require extreme operational readiness. Sandisk Extreme speeds enable quick transmissions, high app performance and 4K UHD recordings. The powerful microSD card is ideal for Android smartphones, action cams and drones and supports 4K UHD video recordings, full HD videos and high-resolution photos. The SanDisk Extreme MicroSDHC memory card reads data with up to 100 MB/s and writes it with up to 60 MB/s. The A1 classification guarantees a high app performance. Reading speed 100MB/s, writing speed 60MB/S, U30, V30, A1, guarantee 30 years.