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24-08-11, 06:54 AM
Join Date: Aug 2009
SD or SecureDigital cards were the first-generation of this type of flash memory card. They come in capacities up to 4GB however, there is no guarantee that a 4GB card will work in any SD card socket. According to the standard, 1GB is the maximum guaranteed working capacity. Capacities of 2GB and 4GB require modifications to the standard and flash card readers that will handle that format. Thankfully, a significant number of devices will easily handle cards up to 2GB in capacity.
SDHC stands for SecureDigital – HighCapacity and is an extension to the SD standard that allows for capacities up to 32GB.
In practice, SDHC cards look like standard SD cards however your device must specifically support SDHC cards to use one. All SDHC card readers and devices can also handle standard SD cards as well so it’s what is called “backward compatible”.
You’ll find most SDHC cards start at 4GB capacity.
The only difference between SDHC is capacity and as SDHC's go up to 32gb, it's all you need for single shot cameras.
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