Securedigital sd sdxc card memory size 64 gb read speed 90 mbs write speed 45 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 27 36 v series panasonic gold pro suitable for 360 recording sports photography full hd recording 3d recording 4k recording device class digital camera dslr camcorder computer car radio tv printer macbook labeling field functions write protection switch standard sd 301 sd