![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Roland_MPU-401.jpg/640px-Roland_MPU-401.jpg&w=640&q=50)
MPU-401
MIDI interface device / From Wikipedia, the free encyclopedia
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The MPU-401, where MPU stands for MIDI Processing Unit, is an important but now obsolete interface for connecting MIDI-equipped electronic music hardware to personal computers. It was designed by Roland Corporation, which also co-authored the MIDI standard.[1]
![A Logo replica of the MPU-401](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Roland_MPU-401_%28Ver.Type_A_%29.png/640px-Roland_MPU-401_%28Ver.Type_A_%29.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Roland_MPU-401.jpg/640px-Roland_MPU-401.jpg)