FEATURES Sega Genesis, Sega Mega Drive, Sega Master System, and 32X files supported. Master System FM core. 128mbit (16mbyte) PSRAM. 120mbit (15mbyte) max ROM size. 256Kbyte Battery RAM YM2413 core by Necronomfive EEPROM and SRAM saves support Firmware update through SD card FAT32 file system supported. MicroSD cards up to 32GB. Instant loading (1-2 sec). Built in audio playback. WAV, GYM, TFC USB port for homebrew development and for future features. In-game menu that allows access back to menu system without leaving the sofa. Snapshot Saves. Regular game battery back-up saves. Hardware MEGAKEY. CD BIOS loading. CD RAM cart feature. Cheats feature. Game Genie and Play-Action Replay format supported.