Micro sd card micro sdxc card memory size 256 gb read speed 90 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 2 7 3 6 v series sandisk mobile ultra suitable for full hd recording device class digital camera dslr camcorder computer tablet pc mp3 player mobile phone printer macbook functions write protection switch software included sandisk media manager software manufacturers warranty 10 years standard sd