Securedigital sd sdxc card memory size 64 gb read speed 95 mbs write speed 90 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 2 7 3 6 v series integral ultimapro x suitable for 360 recording sports photography full hd recording 3d recording 4k recording device class macbook dslr digital camera printer camcorder functions write protection switch manufacturers warranty 5 years standard sd 301 sdhc cl