Colorlight CS4K Media Server for LED Displays
The Colorlight CS4K is a 2U multimedia playback and control server with Colorlight GrandShow software. It supports one video output up to 4096 × 2304 at 60 Hz for point-to-point display, plus multi-screen layouts, scene presets, preview, and monitoring. It is suited to LED display projects that need scheduled, repeatable playback and flexible screen mapping.
Key Features
- 4K-class output: one Mini DisplayPort 1.4 display output, up to 4096 × 2304 at 60 Hz for the complete system.
- Flexible content: play video, images, presentations, and text through GrandShow; HDR video decoding is supported.
- Creative LED layouts: split content across screens, rotate images at any angle, and map extra-wide or irregular displays within the supported output resolution.
- Scene control: edit, preview, save, copy, and switch scenes; use screen freeze or a background image when needed.
- Monitoring and automation: preview content before playback, monitor the output, schedule software start and stop, and cycle scenes automatically.
- External control: supports Pad app visualization, MIDI console shortcuts, and central-control commands for scene switching, playback, and volume.
- Live sources: supports NDI input; capture cards with SDI or DVI interfaces are optional and should be confirmed for the chosen configuration.
CS4K Specifications
| Item | Specification |
|---|---|
| Model and chassis | CS4K; 2U |
| Maximum display output | 4096 × 2304 at 60 Hz; 1 × Mini DisplayPort 1.4 |
| Control interface | 1 × HDMI 1.4 or 1 × DVI, up to 3840 × 2160 at 30 Hz for the software interface |
| System | Windows 10 Pro; Intel 6-core/12-thread processor; 8 GB memory; 500 GB M.2 SSD |
| Network and audio | 1 × Gigabit LAN; 3.5 mm audio input and multi-channel output |
| Optional capture | SDI or DVI capture card |
| Playback software | GrandShow |
What to Check Before Ordering
Match your LED processor or sending system to the CS4K Mini DisplayPort output and confirm the screen mapping and total pixel resolution. The HDMI/DVI ports listed for the operating interface are for the control display; they are not additional 4K@60 Hz program outputs. If you need SDI or DVI live capture, ask about the optional capture card. The CS4K is a media server, so a compatible downstream LED control system is required to drive the display.
Frequently Asked Questions
What is the maximum CS4K output?
The CS4K V1.1 specification lists one Mini DisplayPort 1.4 display output and a maximum complete-system output of 4096 × 2304 at 60 Hz.
Can CS4K play live video sources?
It supports NDI signal acquisition. SDI or DVI capture depends on an optional capture card; confirm the installed hardware before ordering.
Is CS4K the same as CS4K Pro or CS4K G2?
No. This page describes the CS4K model and its V1.1 specification. Check the exact model when comparing output, capture, and software capabilities.
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Download CS4K Specification
Colorlight CS4K LED Display Screen Multimedia Video Server Specification



