Securedigital sd sdxc card memory size 64 gb read speed 40 mbs write speed 40 mbs bus interface uhs i file format exfat operating voltage 27 36 v series sandisk ultra suitable for 360 recording sports photography full hd recording 3d recording 4k recording device class macbook dslr digital camera camcorder computer printer tablet pc manufacturers warranty 10 years sdhc class 10 uhs speed class u1 dimensions 32mm x 24mm x 21mm weight