microSDHC Class 10 UHS-I (Premium) Designed to enhance your smartphone and tablet user experience, Transcend microSDHC UHS-I memory cards feature the Ultra High Speed Class 1 specification. Utilizing this next-generation technology, these cards ensure the best possible performance when running memory-intensive mobile apps and games, as well as smooth Full HD video recording and seamless playback. Size 11mm x 15mm x 1mm Op. Voltage 2.7V~3.6V Op. Temperature -25°C(-13°F) ~ 85°C(185°F) Durability 10,000 insertion/removal cycles Weight 0.4g Compatibility Ideal for smartphones and tablets