4 GB SDHC Secure Digital High Capacity Memory Card
SD High Capacity (SDHCTM) memory cards are the latest Secure Digital memory cards designed for higher capacities, which comply with the SD Card Association's SD 2.0 specification standards.
SDHC memory cards can only work with the new SDHC compatible host devices and they are not backwards compatible with the standard SD-based host devices. However, the standard SD cards are compatible with the new SDHC compatible host devices.
