Verbatim MicroSDHC Class 10 Card Currently the smallest form factor of memory card available, the Verbatim microSDHC Class 10 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 Class 10 specification indicates a minimum data transfer speed of 10MB/Sec.