Micro sd card micro sdxc card memory size 64 gb read speed 70 mbs write speed 20 mbs bus interface uhs i file formats fat32 exfat operating voltage 27 36 v series patriot lx device class digital camera dslr camcorder mp3 player tablet pc mobile phone computer printer macbook functions write protection switch manufacturers warranty 5 years standard sd 30 sdhc class 10 uhs speed class u1 adapter sd card adapter operating temperature 2