Kingston technology 64gb microsdxc class 10 uhs i 45mbs read card sd adapter 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 itacirceurotrades 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 1