pqi 4GB Class 6 microSDHC Memory Card w/SD Adapter pqi 4 GB Class 6 microSDHC Memory Card General Features: 4 GB capacity Class 6 speed performance rating (6 MB/s) Fast data transfer rate microSDHC form factor Meets Secure Digital 2.0 specifications Includes microSDHC to SD adapter with built-in write protection switch Store data, music, pictures and videos