The form factor memory cards currently available are the smaller micro SDHC card, designed specifically for mobile phones. This slim memory card consumes very little power, therefore not compromising the battery life of mobile phones. It can also be used for GPS devices, MP3 players, digital cameras and handheld computers. The list of compatible devices grows daily and micro SD memory card from Verbatim are compatible with any device with an SDHC slot when used with an SD adapter. All cards contain the latest copyright management technology, so as to ensure the legal transfer of digital content (photos, movies, music, etc.) for private use by computer network. SD High Capacity (SDHC) is the SD memory card based on the SDA 2.0 specification. The advantages include a larger capacity and higher data transfer rates. The Speed Class Specification sorts by the number of class performance and provides a methodology able to calculate them.