R4i&R4 Ultra is a SLOT-1 flash card for NDS series
consoles (R4i supports DSi). It's the same size as an
original card. R4 Ultra is an upgrade version of R4. It
supports SDHC, has multi-media features, and can run that
most games and homebrews. It is a equipment that have to
been owned for the global NDS series player.