# MPP

## Overview

**MPP (Microsoft Pen Protocol)** is pen technology invented by Microsoft. We believe it is also very similar to AES.

Originally, Microsoft used a technology called N-Trig in its Surface devices, but later switched to MPP.

It is still used in many Microsoft Surface devices and a few other mobile products.

## Resources

* [/r/stylus - How the Microsoft Pen Protocol (MPP) might actually become the standard for non-Apple, non-Samsung pen devices](https://www.reddit.com/r/stylus/comments/1hzirnk/how_the_microsoft_pen_protocol_mpp_might_actually/) 2025-01-12
* Renaisser - [Comparing Microsoft Pen Protocol (MPP) 1.51 and 2.0: Understanding the Differences Between the Two Versions](https://renaisser.com/blogs/about-the-stylus/comparing-microsoft-pen-protocolmpp-1-51-and-2-0-understanding-the-differences-between-the-two-versions) 2023-02-16
* Microsoft Surface Pen - <https://en.wikipedia.org/wiki/Surface_Pen>
* [Microsoft Surface Slim Pen fact sheet](https://news.microsoft.com/wp-content/uploads/prod/sites/617/2021/09/Surface-Slim-Pen-2-Fact-Sheet.pdf) 2021/10
* [Microsoft Pen Protocol (MPP) Stylus Compendium](https://forum.tabletpc.review/t/microsoft-pen-protocol-mpp-stylus-compendium/1398)
* [Microsoft - Identify your Surface Pen and features](https://support.microsoft.com/en-us/surface/identify-your-surface-pen-and-features-c82a0208-2e35-b347-dae0-d7f4922edc77)
* [r/stylus - About MPP and AES](https://www.reddit.com/r/stylus/comments/wu0rt1/about_mpp_and_aes/) 2022-08-22


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