> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/tech/usi.md).

# Universal Stylus Initiative USI

## Overview

Universal Stylus Initiative: <https://universalstylus.org/>

The Universal Stylus Initiative is, or was, an organization created to define a stylus specification. Ultimately, few styluses use USI, and those that do are poor quality compared to a traditional EMR pen. I highly recommend avoiding devices that use a USI stylus.

## Resources

* Logitech - [What Is USI and How It Can Help Educators](https://www.logitech.com/en-us/education/education-center/article/what-is-usi.html)
* USI - [USI Launched to Create a Specification for an Active Stylus](https://universalstylus.org/usi-launched-to-create-a-specification-for-an-active-stylus/) ([archive](https://archive.is/Yf4i8)) 2015-04-23
* r/chromeos - [Those of you who have a USI pen/stylus, what are your thoughts/impressions?](https://www.reddit.com/r/chromeos/comments/kv4qil/those_of_you_who_have_a_usi_penstylus_what_are/) 2021-01-11 ([archive](https://archive.is/iznku))