Securedigital sd sdxc card memory size 128 gb read speed 80 mbs bus interface uhs i file format exfat operating voltage 27 36 v series pny high performance device class car radio macbook tv dslr digital camera camcorder computer printer labeling field functions write protection switch sdhc class 10 uhs speed class u1 dimensions 32mm x 24mm x 21mm weight 2 g