Here's some food for thought: Why bother with a 2GB SDHC card and sacrifice compatibility advantages of a regular Secure Digital memory card? If you already know the answer, carry on. If you don't, I won't keep you waiting for all too long. Although Secure Digital High Capacity -- or otherwise SDHC -- cards have the same physical format as a standard SD card, they are not backwards compatible with drives that don't specifically support SDHC. The reason behind this is different memory addressing methods. SD1.x cards uses byte addressing, while SD2.0 uses sector addressing which theoretically allows maximum capacity of up to two terabytes. Compatibility and technical issues aside, SDHC cards may yield much better file performance compared to SD cards; and SDHC cards are thus classified into Class 2, 4, or 6 depending on their minimum write speed by the SD Association. Yes, it may be weird that we have a 2GB sized ATP ProMax II Class 6 SDHC cards for our tests today, as this product scales all the way up to 8GB according to ATP's product page. That aside, let's take a close look at the ATP ProMax II SDHC Class 6 2GB, and then we'll put it to the tests.
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