Currently the smallest form factor of memory card available, the microSD memory cards 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. Includes a SD adaptor, making it easier to transfer your data to your PC, Speed Class 10 UHS-I rated, Read Speed: up to 45MB/Sec, Write Speed: up to 10MB/Sec