The SDHC are capable of 20MBps on most devices able to read them, they are just not guaranteed sustained rates. I've been using the 8GB Adata card and it is just as fast, if not faster, than the Adata 4GB 150X card on my computer.
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The SDHC are capable of 20MBps on most devices able to read them, they are just not guaranteed sustained rates. I've been using the 8GB Adata card and it is just as fast, if not faster, than the Adata 4GB 150X card on my computer.