Key Features UHS Speed Class 3 (U3) for fast file transfer Suitable for 4K ultra HD video capture Water and Shock resistant erbatim Pro memory cards give Pro level performance to advanced cameras and HD camcorders. UHS Speed Class 3 (U3) rating means you can capture 4k ultra HD and Full HD video then transfer quickly to your computer for viewing and editing. Suitable for 4k ultra HD video capture and compatible with any device with an SDHC/SDXC memory card slot. Read Speed: up to 90MB/Sec. Write Speed: up to 45MB/Sec. Verbatim Limited Lifetime Warranty SDXC compatible host device required UHS-1 compatible device required, actual performance may vary depending on host device, interface & usage conditions