This document summarizes the features of an R4-SDHC upgrade for the Nintendo DS and DS Lite handheld game consoles. The upgrade allows games and applications to launch faster from an SD card, includes power saving modes, supports SD cards up to 32GB, adds customization options like custom skins and backgrounds, and integrates additional homebrew functionality like updated versions of MoonShell. It is packaged in a color box and includes a lanyard.