ATP ProMax miniSD cards are next generation high speed flash memory cards designed for your current and future mobile phones allowing for super fast transfer speeds (initially 22.5MB/s, potentially 50MB/s). Not only will ATP ProMax miniSD cards unleash the full potential to your new phone with ultra fast transfer speeds, but they are also completely backwards compatible with your current SD enabled digital cameras, PDAs, MP3 players and mobile phones. With this backwards compatibility, performance will be maximized with any current or upcoming multimedia device. Successors to the universally adapted SD (SecureDigital) cards, ATP ProMax miniSD cards are based on the latest standard specification v1.1 from the SecureDigital Association (SDA). By utilizing a clockspeed double that of 60x SD cards, current ATP ProMax miniSD cards are rated with transfer speeds up to 22.5MB/s read and 15MB/s write, effectively doubling the transfer speed of current miniSD cards.