SDHC, while only supported by a few manufacturers and camera models now, is sure to be adopted by the imaging market as HD video recording and higher-resolution photography necessitates larger capacities.” Though standard SD and SDHC cards look identical in size and shape, only SDHC-compatible products will be able to accept the new SDHC cards.Ĭhris Chute, research manager at IDC, said, “Consumers are beginning to demand next-generation image and video capture features in smaller devices. These cards adhere to the SD Speed Class Rating specification which defines a minimum sustained transfer speed for SDHC cards. The specification was developed by the SD Association, an industry standards board, which also defined three speed classes for speed and performance capabilities.
SDHC is the new designation for SD cards larger than 2GB that adhere to the SD 2.00 specification, a completely new design that is required for cards and hosts to support 4GB to 32GB capacities. SDHC cards require an SDHC-compatible reader. These new readers work with both SDHC and SD cards. The 4GB SDHC card will be bundled with the MicroMate USB 2.0 reader at no extra charge.
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