Viking 64 MB Secure Digital Card (SD64M) Optimized for use in PDAs, MP3 players, or digital cameras Lightning fast read and write speeds allow you to get the best performance from your PDA, MP3 player, or digital camera High quality components guarantee steady performance, the utmost durability, and breadth of compatibility Individually tested to ensure each product works the first time, everytime Five year replacement warranty and 30-day money-back guarantee