The V7 4GB SD Card uses an efficient interface for a high transfer rate of up to 4MBps. This V7 memory card features a Content Protection for Recordable Media (CPRM) mechanism to ensure superior protection for your digital data. It has a built-in Error Correcting Code that easily detects and corrects transfer errors. This Class 4 microSDHC card supports In-System Programming for easy installation. It comes with an SD adapter with write protection lock to prevent accidental data deletion. This V7 4GB SD Card is compatible with most digital cameras, camcorders, PDAs and MP3 players.