SanDisk Ultra II? Mobile cards are high-performance memory cards ideal for mobile device enthusiasts looking for the best performance and quality to store their premium content. The newest generation of feature-rich mobile phones double as MP3 players, video players, and digital-cameras. These high-capacity Ultra II? Mobile cards provide plenty of storage for longer play-lists of music, full-length videos for mobile phones, or viewing hundreds of photos. Advanced Features: Transfer Speeds: Write 9MB/sec Read 10MB/sec Package Contents: Ultra II? Mobile Card Adapter Insert