NES UNROM 512 (Mapper 30)


NES UNROM 512 Board.

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SKU: NES_UNROM512_black Categories: , ,


NES UNROM 512 (Mapper 30)

The NES UNROM 512 (Mapper 30) is a homebrew or reproduction board that supports expanded NES Mapper 2 and Mapper 30 with self flashing support. This board is perfect for games made with NESMaker.

Component List

U1 – Lockout Chip – AVRCIC (HERE)

U2- CHR – 6264/62128/62256(Reccomended) (6264 HERE) (62256 HERE)

U3 – PRG – 39SF040 (HERE)

U4 – 74HC377 (HERE)

U5,U7 – 74HC32 (HERE)

U6 – 74HC139 (HERE) (U6 is needed for the flashable configuration which is required by NESMaker. If using Flashlock do not populate)

C1 – 22uf 16V Capacitor (HERE)

C2,C3,C5,C6,C7 – 0.1uf 50V Capacitor (HERE)

Mapper Compatibility

Verified compatible with Mapper 2 and Mapper 30. Please note that other mappers have not yet been tested.

Flasher Compatibility

Once assembled this board works with the ‘INLretro USB Programmer” which can be found here. Although the rom can be programmed to this board with the programmer the mirroring can not. Mirroring must be set by soldering jumpers on the board.


Build instructions/tutorials aren’t available at this time. If you are uncomfortable or new to building your own cartridges please wait for tutorials to become available.

Additional information

Weight0.05 lbs
Dimensions4.02 × 3.44 × 0.055 in



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