More than seven years of development have been crowned with success !!!
NES Flash (SRAM, - Static Random Access Memory) cartridge
PRG RAM 2Mb, CHR RAM 2mb (Total 32MBit, 32768 KBit).
Save / Load console status anywhere in the game
Fast boot ROMs from a memory card.
Supported file systems: FAT12 / FAT16 / FAT32 / exFAT. 32 GB maximum memory card size for FAT12 / FAT16 / FAT32, exFAT any card size support (MMC / SD / SDHC). Exact, high-quality work with a memory card, it is not necessary to reformat the memory card if something has changed, unlike EVER...
The maximum size of a downloadable ROM is up to 32Mb (4Mb).
32kb nonvolatile static RAM for game play (supported by a CR2032 battery, the battery comes with the device).
InGAME Menu Touch Button.
NSF sound roms support.
Coating the slats (cartridge pads) with Immersion Gold.
Counting the checksum of the loaded ROM on the fly means that the cartridge will select the most correct mode of operation of the mapper.
Real time clock (supported by CR2032 battery).
Built-in coprocessor, speed up work with memory cards and other fine stuff...
Fully customizable management, listing by page, various modes of sorting ROMs, displaying information about the currently selected ROM and much more.
Table mappers, cartridge supports more than 99% of all known romset:
You can read more here.