Support US version of system, support some compatible machines. Support / FC games and FC drive games. Supports automatic flipping of FC / drive games. Support instant archive and reading Support FC / game gold finger. FC / game archive automatic backup to SD card (no special operation required) The Mapper support can be increased through software upgrade (the system loads the 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) OS-V13 , The est and best circuit Don't Support OS updates. With save function, save progress, never lost Comes with a 1000 Game TF card and a of games The main control uses the powerful Cyclone II FPGA chip 2 x 512Kbyte SRAM as PRG and 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 bus and 3.3V bus. Far less noise and power consumption than simple resistor buffering Different batches may have different stickers/appearances, which do not affect use; different lighting or displays may cause color differences in the actual product. Colour:gray brown Material:ABS Package Contents: 1 x Game Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.