Micro sd card micro sdhc card memory size 8 gb read speed 40 mbs bus interface uhs i file format fat32 operating voltage 2 7 3 6 v series integral ultimapro device class digital camera dslr camcorder tablet pc mobile phone computer printer macbook functions write protection switch manufacturers warranty 5 years standard sd 301 sdhc class 10 uhs speed class u1 adapter sd card adapter dimensions 15 mm x 11 mm x 1 mm weight 04 g