Securedigital sd sdxc card memory size 128 gb read speed 95 mbs write speed 60 mbs file format exfat operating voltage 2 7 3 6 v series a data i memory sdxc suitable for 360 recording sports photography full hd recording 3d recording 4k recording device class macbook dslr digital camera camcorder printer adapter without adapter dimensions 23mm x 24mm x 45mm weight 2 g