Kingston 4 GB Flash Memory Card SDC10/4GBSP Compliant - with the SD Specification Version 3.00 (Class 10) Versatile - when combined with the adapter, can be used as a full-size SDHC card Compatible - with microSDHC host devices; not compatible with standard microSD-enabled device/readers High-Speed Class Rating - Class 10: 10MB/sec. minimum data transfer rate File Format - FAT 32 Reliable - lifetime warranty