Sony sdxc 64gb class 4 uhs i sf64u
Securedigital sd sdxc card memory size 64 gb read speed 40 mbs bus interface uhs i file format exfat operating voltage 27 36 v device class macbook dslr digital camera camcorder computer printer mobile phone tablet pc functions write protection switch sdhc class 4 uhs speed class u1 dimensions 32mm x 24mm x 21mm weight 2 g