The Verbatim Premium Micro SDXC Card are designed especially for mobile phones, this tiny memory card consumes very little power, therefore preserving the battery life of your mobile phone. It can also be used in GPS devices, MP3 players, digital cameras and PDA's. Verbatim microSD memory cards are compatible with all devices that have an SDHC/SDXC slot when used with the SD adaptor. All cards contain the latest copyright management technology to ensure legal transfer of digital assets (pictures, movies, music etc.) over computer networks for personal use. The Class 10 specification indicates a minimum data transfer speed of 10MB/Sec.