Kingston Digital Secure Digital Class 10 Value Card (SD10V/4GB) Compliant - with the SD Card Association specification Secure - built-in write-protect switch prevents accidental data loss Compatible - with SDHC & SDXC host devices; not compatible with standard SD-enabled devices/readers File Format - FAT32 Speed Class Rating: Class 10: 10MB/s guaranteed minimum data transfer rate Simple - as easy as plug-and-play Reliable - lifetime warranty