Performance Grade 32GB Amazon Fire HD 8 MicroSDHC Card by MIXZA is Pro-Speed, Heat & Cold Resistant, and built for Lifetime of Constant Use! (UHS-I/3.0/80MB/s) Get Ultimate Quality and Speed for your Amazon Fire HD 8! The best quality, speed, and control really makes a difference! Most receive longer battery life, faster pictures and video abilities, plus more! SPECIFICATIONS: UHS-1, Class 10, 500x-750x Read Speeds, 15-20MB/s Minimum Read speed and 9.5-15MB/s Write Speeds. *BUY NOW - NEWEST VERSION NOW AVAILABLE!*