Can someone tell me about micro SD memory cards?

Many cell phones have a expansion slot for adding memory such as the Micro SD cards. I found a memory card that says Micro SD HC. What does HC denote, and is this compatible with most cell phones?

Can someone tell me about micro SD memory cards?
HC Cards are a newer format that can have greater capacities than the older standard SD cards. SDHC stands for Secure Digital High Capacity. However, they are not backwards compatible with older devices even though they may fit in the slots. Only devices that specifically say HC on them will be able to utilize those cards. Unless your cell phone says it accepts SDHC cards, looks for something else. I hope this helps.

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