What is SDHC memory card?
The SD High-Capacity (SDHC) card provides more removable storage power than ever before. With a capacity range starting at 4GB and going up to 32GB, developers have the choice to specify three data-writing speeds at guaranteed minimum data transfer rates. SDHC cards share the same physical and electrical form factor as older cards, allowing SDHC-devices to support both newer SDHC cards and older SD-cards. To increase addressable storage, SDHC uses sector addressing instead of byte addressing in the previous SD standard. SDHC cards will not work in devices designed to the older SD 1.x specification.The SDHC card, already a market leader in the digital camera marketplace, preserves photographic integrity and raises the memory performance bar by guaranteeing minimum — more important than maximum — performance rates.
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