Securedigital sd sdxc card memory size 256 gb read speed 100 mbs write speed 75 mbs bus interface uhs i mode of transmission uhs104 file format exfat operating voltage 27 36 v series pny elite performance 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 manufacturers warranty 5 years