# Haptic Trackpad Pinouts

**URL:** <https://community.frame.work/t/haptic-trackpad-pinouts/85139>\
**Category:** Creators & Developers\
**Tags:** project, feature-requests\
**Created:** [September 28, 2026, 6:53pm UTC](https://community.frame.work/t/haptic-trackpad-pinouts/85139 "2026-09-28T18:53:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Luminoso](https://avatars.discourse-cdn.com/v4/letter/l/34f0e0/32.png) [@Luminoso](https://community.frame.work/u/Luminoso)\
**Post date:** [September 28, 2026, 6:53pm UTC](https://community.frame.work/t/haptic-trackpad-pinouts/85139/1 "2026-09-28T18:53:45Z")

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I’m interesting in doing some things with the 13 Pro’s haptic trackpad, and had two questions that I can’t spot the documentation for on the framework github yet:

1. What’s the pinout for the new trackpad cable? Unlike the original FW13 it seems like the “hub” functionality for the input cover is now on a discrete board.

2. What’s the purpose of this secondary connector? The fact that its populated and not labeled as debug would seem to suggest it is intended for use, but I can’t find any references to it at all. If there’s any USB/I2C on it, it’d make a great jumping off-point for expansions or additions inside the case:

 ![image](https://us1.discourse-cdn.com/flex001/uploads/framework3/original/3X/8/0/80847f59390fcde769feabd17ea4d8ba1fb2275d.jpeg)