Securedigital sd sdhc card memory size 8 gb read speed 50 mbs write speed 33 mbs bus interface uhs i mode of transmission uhs104 file format fat32 operating voltage 27 36 v series a data premier 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 functions write protection switch standard sd 30 sdhc class 10 uhs spee