The R4i SDHC cards were designed to replace the orginal R4 cards, offering all the same famous features but with the possibility to now use the R4i on your DSi or DSi XL console. Possibly the best feature about the R4i SDHC is that it is fully backwards compatible with the older DS and DS lite consoles.

Support for the R4iSDHC comes in the form a Micro or SDHC memory card, also known as a TF memory card these chips are normally used in mobile phones due to their extremely small size. The R4i allows you to store up to 32GB of data on a single chip, roughly the same size as a small coin, see the image below for a comparison.