Actual Capacity: The usable capacity is less than the labeled capacity due to differences in calculation methods. A 64GB card typically provides about 58.5GB of available space.

Read/Write Speed: The SanDisk 64GB MicroSDXC Ultra UHS-I memory card delivers high-speed performance, ideal for surveillance cameras, dash cams, smartphones, and tablets. The listed speed refers to the maximum read speed; actual performance may vary depending on the device and usage environment.