Kingston Digital 16GB Micro SD Flash Card, Pack of 2, One Adapter with Jcase (SDC4/16GB-2P1AET) Pack of 2 Micro SD Flash Cards High-Speed Class Rating - Class 4: 4MB/sec. minimum data transfer rate Compliant - with the SD Card Association card 3.00 specification Compatible with microSDHC host devices; not compatible with standard microSD-enabled device/readers File Format - SDHC File Format - FAT32 Ships in Certified Frustration-Free Packaging