R4 card is most popular in Nintendo DS players. Except the r4 flashcard, an extra MicroSD card is also needed to load games and r4 kernel. Currently, the R4 card can only support MicroSD card upto 2GB, so the R4 card 2GB bundle is the most optional selection. The 2GB SD card can load 4 to 10 DS games (depends on the Rom size). R4 Kernel Download. DS game Download.
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