Micro sd card memory size 8 gb operating voltage 27 36 v series sandisk mobile device class digital camera dslr camcorder mp3 player tablet pc mobile phone computer printer macbook functions write protection switch manufacturers warranty 5 years standard sd 20 sdhc class 4 adapter sd card adapter protective properties waterproof shockproof magnet proof temperature resistant operating temperature 25 to 85 c dimensions 15 mm x 11 mm x 1 mm