SanDisk Extreme 128GB MicroSDXC 1 V30 A2 C10 card offload speeds of up to 190MB/s powered by SanDisk QuickFlow Technology (Up to 190MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of such speeds). According to internal tests, depending on the host device interface, use conditions, and other factors, performance may be lower.
4K and 5K UHD compatible with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) (Compatible device required). Support for Full HD (1920x1080), 4K UHD (3840 x 2160), and 5K UHD (5120 x 2880) may vary depending on the host device, file properties, and other variables. See the HD page on the SanDisk website. UHS Speed Class 3 (U3) is a performance option that allows for real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30) is a performance option designed to facilitate real-time video recording with UHS-enabled host devices, with a sustained video capture rate of 30MB/s. Suitable for mobile phones, cameras and drones.