Overview:TwinMOSs microSDHC-class4 cards are high capacity with high transfer rate that is compatibility with SD2.0 specification and is compatible with SD slots by adapter. Low power consumption and single/dual channel with high performance will be the best choice of digital players. The applications of microSDHC include only supported by SDHC devices, such as mobile phones, MP3 players, DSCs, DVs, PDAs. Main Features: Support SD memory card specification v2.0 Support CPRM Compatible with SD slots by adapter Low power consumption ; support 3.3V Single/Dual Channel with high performance Support SDHC Host specification Specifications: Capacity 16GB Operation Volt 2.7V/ 3.6V Dimension 15(L) x 11(W) x 1(H) mm Operation Temp. -25°C(-13°F) ~ 85°C(185°F)