Verbatim Pro micro SD memory cards give Pro level performance to action cameras, camcorders, smart phones & tablets. 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. Verbatim Pro micro SD memory Cards are are water resistant & shock resistant and include a micro SD to SD adapter. Suitable for 4k ultra HD video capture, 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 64GB Card + SD Adapter Product Number: 47042 GB = 1 billion bytes. Capacity available for storage will be less; device uses up to 10% of memory for formatting and other functions. See www. verbatim. com/flashcapacity.