CS20-8K Pro playback and scene management
The Colorlight CS20-8K Pro is a GrandShow media server with four DP 1.4 playback outputs, front-panel touch control and scene preview. It supports media preparation for split-screen and shaped LED displays, with video, images, PPT and text playback.
CS20-8K Pro specifications
Values below follow the linked V2.1 specification. Its feature page and parameter table give different maximum resolutions and per-channel timings. Both are identified here so the actual supported mode can be confirmed for the supplied hardware.
| Parameter | Specification |
|---|---|
| Playback outputs | 4 × DP 1.4 |
| Operator interface | 1 × Mini DP, up to 4096 × 2304 at 60 Hz |
| Maximum canvas — document conflict | Feature page: 8192 × 4608 at 60 Hz; parameter table: 8192 × 4320 at 60 Hz |
| Per-channel output — document difference | Features: 4K at 60 Hz; parameter table: 4096 × 2160 at 120 Hz |
| Processor | Intel 10 cores / 20 threads |
| RAM / SSD | 32 GB / 1 TB M.2 SSD, expandable |
| Graphics | Quadro professional graphics, 16 GB |
| Capture card | SDI or DVI; optional |
| Playback software | GrandShow |
| Power input / power | AC 100–240 V, 50/60 Hz / 425 W |
| Chassis / dimensions (W × H × D) | 4U / 483.0 × 173.6 × 506.1 mm |
| Net weight | 17 kg |
| Operating environment | 0 to +45 °C; 10–80% RH, non-condensing |
Show control and configuration
Front-panel touch operation provides device information, project loading, scene switching and color adjustment. Preview and program monitoring help operators prepare content while checking the live output. The specification also lists HDR decoding/playback, NDI acquisition, timed operation, Pad control and third-party control.
Specify the canvas, output timings, media formats, live inputs and backup arrangement before ordering. Confirm optional capture hardware and the installed software version, and test the complete signal path with the LED controller.
Application image

Specification download
Download the CS20-8K Pro specification (V2.1)
Frequently asked questions
How many playback outputs does CS20-8K Pro have?
V2.1 lists four DisplayPort 1.4 playback outputs and a separate Mini DP port for the operating interface. The Mini DP operator connection is not counted as a fifth playback output.
What maximum resolution is specified?
The V2.1 feature page states 8192 × 4608 at 60 Hz, while its parameter table states 8192 × 4320 at 60 Hz. The same document describes 4K at 60 Hz in the features and 4096 × 2160 at 120 Hz per channel in the table. Confirm the validated output mode for the supplied hardware before designing the canvas.
What CPU, memory and storage are documented?
The V2.1 table lists an Intel 10-core, 20-thread processor, 32 GB RAM, an expandable 1 TB M.2 SSD and Quadro graphics with 16 GB memory. Confirm the delivered hardware revision.
Are SDI and DVI capture inputs included?
The specification marks the SDI or DVI capture card as optional. NDI capture is listed as a supported function. Confirm the acquisition hardware and configuration required for live sources.
Can the server preview scenes and provide backup?
GrandShow supports preview/editing and output monitoring, multiple scenes, timed operation and redundancy backup. A working backup arrangement requires the appropriate additional server and system configuration.


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