AData Class 4, 8GB microSDHC (Microsecure Digital High Capacity) Memory Card with microSD Adapter enables faster transfer rates and expands upon the previous maximum capacity of 2GB. The AData microSDHC Class 4 provides cellular phones even more memory storage for multimedia, business and personal data. The microSDHC s 2 MB/s transfer rate places it as the top choice for micro storage devices and a must-have for your mobile life.