... Mechanism -CPRM Popular full capacity TF card High Capacity TF card (microSDHC) is introduced to meet your demand for a better quality ... of life. Conforming to SD Specification 2.0 ... 4GB,16GBClass 4 - 4GB,8GBClass 6 -4GB ,8GB,16GBConforms to SD Memory Card Specification 2.0 versionPower Requirements:2.7V ~ 3.6V ...