# HyperX QuadCast 2 S: reconstructing RGB control on macOS

> HyperX QuadCast 2 S RGB control implements a macOS client for the microphone's USB HID lighting exchange. The source documents seven-packet color updates, acknowledgments, upper and lower LED zones, and IOKit collection selection and response draining. The app controls solid colors and brightness through a menu bar interface.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/matiasromero/hyperx-quadcast-colors-utility>
- Primary source: <https://github.com/matiasromero/hyperx-quadcast-colors-utility/blob/263bdb11409af37725e44853618cd1c2a1bb4457/README.md>
- Catalog page: <https://awesomerea.org/resources/hyperx-quadcast-2s-rgb-case/>
- Record JSON: <https://awesomerea.org/resources/hyperx-quadcast-2s-rgb-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/hyperx-quadcast-2s-rgb-case/index.md)

## Requirements & limits

- **Prerequisites:** macOS 14 or later and a HyperX QuadCast 2 S are required; source builds require Xcode 15+ and xcodegen.
- **Limits:** Animated lighting modes are unsupported because their 2 S protocol remains undecoded.
- **License:** MIT license.

## Primary sources

1. <https://github.com/matiasromero/hyperx-quadcast-colors-utility/blob/263bdb11409af37725e44853618cd1c2a1bb4457/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.