# Keychron K1 SE - Hardware Design Files > Ultra-slim tenkeyless wireless mechanical keyboard with Bluetooth 5.1, USB-C wired mode, and support for macOS and Windows. **Product page:** [Keychron K1 SE Wireless Mechanical Keyboard (Version 5)](https://www.keychron.com/products/keychron-k1-se-wireless-mechanical-keyboard) ![Keychron K1 SE](https://www.keychron.com/cdn/shop/files/keychron-K1-SE-Ultra-slim-Wireless-Custom-Keyboard-1.jpg?v=1787731905) ## Specifications | Spec | Detail | |---|---| | Layout | 80% / TKL / US ANSI | | Profile | Low-profile | | Connectivity | Bluetooth 5.1 / USB-C wired | | Switch Type | Low Profile Gateron Mechanical / Low Profile Keychron Optical | | Hot-swap | Available on Keychron Optical and selected Gateron Mechanical versions | | Case Material | Aluminum top case / ABS bottom case | | Backlight | White backlight / RGB backlight, depending on version | | Polling Rate | 1000 Hz (wired) / 90 Hz (Bluetooth) | ## Included Files | File | Description | |---|---| | `K1_SE_US_Aluminum_Top_Case-20220316.dwg` | US aluminum top case 2D CAD drawing | | `K1_SE_US_Aluminum_Top_Case-20220316.pdf` | US aluminum top case reference drawing | | `K1_SE_US_Aluminum_Top_Case-20261110.stp` | US aluminum top case 3D CAD model | | `K1_SE_US_Bottom_Case-20261110.stp` | US bottom case 3D CAD model | | `K1_SE_US_Full-Model-20261104.stp` | US full keyboard 3D CAD model | | `K1_SE_US_PCB-20221215.dwg` | US PCB 2D CAD drawing | | `K1_SE_US_PCB-20221215.pdf` | US PCB reference drawing | ## Downloads > **Download note:** If a download link does not respond, copy the link and paste it directly into your browser's address bar. All links below are hosted on Keychron's official server and are safe to use. | File | Download Link | |---|---| | `K1_SE_US_Aluminum_Top_Case-20220316.dwg` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Aluminum_Top_Case-20220316.dwg](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Aluminum_Top_Case-20220316.dwg) | | `K1_SE_US_Aluminum_Top_Case-20220316.pdf` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Aluminum_Top_Case-20220316.pdf](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Aluminum_Top_Case-20220316.pdf) | | `K1_SE_US_Aluminum_Top_Case-20261110.stp` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Aluminum_Top_Case-20261110.stp](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Aluminum_Top_Case-20261110.stp) | | `K1_SE_US_Bottom_Case-20261110.stp` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Bottom_Case-20261110.stp](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Bottom_Case-20261110.stp) | | `K1_SE_US_Full-Model-20261104.stp` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Full-Model-20261104.stp](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_Full-Model-20261104.stp) | | `K1_SE_US_PCB-20221215.dwg` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_PCB-20221215.dwg](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_PCB-20221215.dwg) | | `K1_SE_US_PCB-20221215.pdf` | [http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_PCB-20221215.pdf](http://www.keychron.co:34568/keychron-github-assets/Keychron-Keyboards-Hardware-Design/K-SE-Series/K1-SE/K1_SE_US_PCB-20221215.pdf) | ## Opening the Files | Format | Free Software | Commercial Software | |---|---|---| | `.stp` | FreeCAD, Onshape | Fusion 360, SolidWorks | | `.dwg` | LibreCAD (limited), QCAD | AutoCAD, DraftSight | | `.pdf` | Any PDF viewer | - | ## Links - [Series Overview](../README.md) - [Main Repository](https://github.com/Keychron/Keychron-Keyboards-Hardware-Design) ## License This project is **source-available**. Personal and educational use is allowed, and commercial use is allowed for original compatible accessories within the limits of the license. **You may not use these files to copy, manufacture, sell, or distribute Keychron keyboards or mice, or substantially similar products, and you may not use Keychron trademarks as your own branding.** See the [LICENSE](../../LICENSE) for full terms.