![MPU Replacement Board for Williams System 9, 11, 11A, 11B und 11C MPU Replacement Board for Williams System 9, 11, 11A, 11B und 11C](https://www.pinball.center/15294-large_default/mpu-replacement-board-for-williams-system-9-11-11a-11b-und-11c.jpg)
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Rottendog MPU9211 Replacement Board for Williams System 9, 11, 11A, 11B & 11C MPU Board
Used in:
Board does not ship with game specific ROMs!
System 9: Space Shuttle, Comet, Sorcerer require special ROMs. Strike Zone software will not run on the MPU9211. Original System 9 ROMs WILL NOT run on the MPU9211. System 9 games have new ROMs that have been formatted for the MPU9211 and have been tested by Rottendog. Please request the ROM file if you need it for your game and we will send a link to download the ROM for you to burn. Of course you can also buy the ROMs from us if you don't want to burn yourself!