FEATURES 64mbit (8mbyte) PSRAM. 56mbit (7mbyte) max ROM size. 128Kbyte Battery RAM FAT32 file system supported. microSD cards up to 32GB. Fast loading (2-4 sec). Built in audio playback. GYM, TFC Regular game battery back-up saves. Sega Genesis, Sega Mega Drive, Sega Master System, and 32X files supported. Hardware MEGAKEY. CD BIOS loading. CD RAM cart feature. Cheats feature. Game Genie and Play-Action Replay format supported.