Uhs i speeds in a small durable card kingstons microsdhcmicrosdxc class 10 uhs i card features class 10 uhs i speeds of 45mbs read and 10mbs write making it ideal for photographers who shoot everything from still images to kids and pets in motion its also ideal for cinema quality hd 1080p video and reduces buffer time between shots when compared to the class 4 card the smallest sd card available microsdhcmicrosdxc class 10 uhs i is the standard expandable storage option for man