CS16K GrandShow server for large LED canvases
The Colorlight CS16K is a multimedia server with eight DP 1.4 playback outputs and GrandShow software for scene and timeline control. It supports layered media playback, screen splitting, shaped-screen arrangements and output monitoring for large LED installations.
CS16K technical specifications
| Parameter | Specification |
|---|---|
| Playback outputs | 8 × DP 1.4 |
| Maximum per-channel output | 4096 × 2304 at 60 Hz |
| Maximum whole-system output | 16384 × 4608 at 60 Hz |
| Operating interface | 3 × Mini DP; up to 4096 × 2304 at 60 Hz per channel |
| Processor | Intel 16 cores / 32 threads |
| RAM / system SSD | 128 GB / 1 TB M.2 SSD, expandable |
| Graphics | 2 × Quadro professional graphics cards, 16 GB each |
| Optional capture | HDMI, SDI or DVI |
| Network | 1 GbE and 10 GbE |
| Software | GrandShow |
| Input / listed power | 200–240 V AC, 8 A, 50/60 Hz / 700 W |
| Power-supply hardware | 1300 W redundant PSU listed in the hardware section |
| Chassis / dimensions (W × H × D) | 5U / 482.6 × 236.76 × 577.4 mm |
| Net weight | 20.6 kg |
| Operating environment | 0 to +55 °C; 0–85% RH, non-condensing |
Playback, timeline and control
The specification includes video, images, PPT, text, web pages and streaming media, along with 10-bit HDR decoding and NDI reception. Timeline playback, timed commands, window effects and transitions support show programming. Performance monitoring and playback logs help review the system workload.
Plan the eight playback connections separately from the operator monitors. Confirm the required capture cards, synchronization and multi-server backup design before commissioning. MIDI, Pad app and central-control integration depend on the configured workflow.
Product photo

Specification download
Download the CS16K specification (V1.1)
Frequently asked questions
How many playback outputs does the CS16K have?
V1.1 lists eight DP 1.4 playback outputs. Three Mini DP connections are listed separately for the operating interface; they should not be counted as additional playback outputs.
What is the maximum display resolution?
The specification lists 4096 × 2304 at 60 Hz per playback channel and 16384 × 4608 at 60 Hz for the whole system. Confirm the controller inputs, canvas mapping and media workload for the installation.
Can CS16K play 8K and HDR content?
V1.1 describes decoding and playback of two 8K videos and supports 10-bit HDR video decoding/playback. Actual playback planning should account for codecs, layers and the complete display signal path.
What power input and consumption are listed?
The specification table lists 200–240 V AC, 8 A, 50/60 Hz and 700 W. The hardware section describes a 1300 W redundant power supply; that PSU rating is different from the listed device power figure.
Are capture inputs and server backup included automatically?
HDMI, SDI and DVI capture cards are listed as optional. Multi-server primary/secondary backup is supported, but it requires the additional server hardware and the appropriate configuration.


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