NeoBiosMasta 1.7 Neo geo mv1b mv1c with UniBios 4.0.

This listing comes fully assembled by hand and with latest Neo Geo UniBios 4.0

This is specifically for Neo Geo MVS MV1C boards and MV1B boards

You’ll need to solder 2 wires if you remove the old bios or solder 3 wires if you want keep the original bios chip on the board. Either way will work.

This unit plugs into your 68000 Motorola chip and if you do it successfully you’ll have UniBios 4.0. Perfect for consoled MVS, your Arcade board or OpenMVS project.

This is revision 1.7 and is brand new.


This purchase includes the fully assembled kit as shown in the photos with a UniBios 4.0 installed as well as the wiring.

Will include instructions for you.


Check my other listings for a lower priced DIY edition you solder yourself.

For a lower price these can come desoldered as a DIY kit OR Assembled without UniBios 4.  Every MVS Project has its own needs. Message me for more details.