Samsung ultra-high-speed TF64G Class 10. Read Speed: 24MB/s. Write Speed: 7MB/s. * High storage capacity for storing essential digital content such as high quality photos, videos, music and more. Optimal speed and performance for micro SDHC compatible devices * Built to last, with an operating shock rating of 2,000Gs, equivalent to a ten-foot drop * Easily transfer files between your digital devices and computer. Low power consumption, extending your battery life.