** Root My NOOK Color! ** - 16GB SanDisk Class 4 Micro SD Card Based off CyanogenMod 7.0.3 (Latest stable release) Easy as 1-2-3 and completely safe! Insert, Turn on, Enjoy! Will not alter or harm your stock Nook Color. Runs competely off the Micro SD card. Dual Boot feature added. No need to take the Micro SD Card in-and-out. Nook to Android Tablet Sandisk performs the best