This cart will fit the following shells – DMG, GBC, Crystal (Japan/USA) and Kirby.
This cart works on every Gameboy system – GB, MGB, GBC, GBA, GBA SP and the Game Boy Player. It also works on the N64 transfer pack for Pokemon Stadium 1 & 2 (as per a user report).
(Prototype cart shown above)
ROM: 2MB Flash
FRAM: 32KB (Data retention of 20-50 years)
MBC: MBC3 original chip
The power consumption of MBC3 when powered from the battery appears to depend on the chip markings which is either around 2.3uA or 5uA so a CR2025 should last at least 2-3 years and a CR2032 should last at least 4-5 years. Only the RTC is powered by the battery so the save is retained if the battery runs dry.
The PCB finish is ENIG.