Since the version 3 is available, there's no reason to get the v2 as you'll be able to get bigger microSDHC cards:
R4 III Upgrade SDHC Revolution for DS
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Get the R4 III
Since the version 3 is available, there's no reason to get the v2 as you'll be able to get bigger microSDHC cards:
R4 III Upgrade SDHC Revolution for DS