Securedigital sd sdhc card memory size 8 gb read speed 45 mbs bus interface uhs i file format fat32 operating voltage 27 36 v series integral ultimapro device class macbook dslr digital camera printer camcorder functions write protection switch manufacturers warranty 5 years sdhc class 10 uhs speed class u1 adapter without adapter dimensions 32mm x 24mm x 21mm weight 2 g