Support original US version of NES system, support some NES compatible machines.Support NES / FC games and FC drive games.Supports automatic flipping of FC / NES drive games.Support instant archive and readingSupport FC / NES game gold finger.FC / NES game archive automatic backup to SD card (no special operation required) ***The Mapper support can be increased through software upgrade (the system loads the new Mapper file from the SD card)Support FAT / FAT16 / FAT32 format memory card.Support 32GB SD memory card.High-speed loading games (usually only 4 ~ 8 seconds to load each game).Hardware introduction:The main control uses the powerful Cyclone II FPGA chip2 * 512Kbyte SRAM as PRG and CHR data carrier.128kbyte game archive chip.1Mb flash BIOS chip.The matching level between the voltage transition buffer on the PPU and CPU bus is 5V NES bus and 3.3V EverDrive bus. Far less noise and power consumption than simple resistor buffering