Kystar S6: six-port LED sending with HDMI and DVI
The Kystar S6 is an LED sending controller with one HDMI 1.3 input, one DVI input and six Gigabit Ethernet outputs. Its total LED load is up to 2.35 million pixels, and its maximum standard input resolution is 2048 × 1152 at 60Hz. It sends video to a compatible LED receiving-card system for rental and fixed display installations.
The six outputs allow the screen to be divided across multiple cable chains. They do not increase the unit’s total capacity to six times the maximum per-port load: both the total and individual output limits must be satisfied.
Verified S6 specifications
| Specification | Details |
|---|---|
| Video inputs | 1 × HDMI 1.3; 1 × DVI |
| Standard input resolution | Up to 2048 × 1152 at 60Hz |
| LED outputs | 6 Gigabit Ethernet ports; hot-backup support |
| Total LED load | Up to 2,350,000 pixels |
| Per-port LED load | Up to 650,000 pixels |
| Maximum dimensions | Width or height up to 4,000 pixels, within the total pixel budget |
| EDID | Read, modify and customize compatible source timing |
| PC control | USB-IN and 2 × CFG-1G connections |
| Cascade control | Up to 8 compatible units |
| Additional connections | LIGHT SENSOR and UART IN; confirm matching accessories |
| Calibration | Passive brightness and color calibration with the Kystar calibration system |
Useful setup and calibration features
- Passive calibration: carry out supported LED brightness and color correction without an active video source.
- Correction-data transfer: use the supported Kystar workflow to deliver calibration data.
- Flexible cable routing: configure irregular screen layouts without allocating loaded pixels to empty areas.
- EDID management: match the source timing to the display configuration within the documented input limit.
- Output control: adjust brightness and color temperature, and coordinate compatible units through cascade control.
Pixel budget and receiving-system compatibility
A 1920 × 1080 LED canvas contains 2,073,600 pixels and is below the S6 total capacity. This is a pixel-count example; the cabinet arrangement and receiving-card mapping must also keep each output within 650,000 pixels. Six ports at 650,000 pixels each do not imply a 3.9-million-pixel unit: the overall maximum remains 2.35 million.
The maximum width and height are separate dimensional limits, not a fully loaded 4000 × 4000 canvas. Standard 2048 × 1152 source timing and supported custom timings must be assessed within the input pixel budget. The documented model does not list 3840 × 2160 input.
Confirm the exact receiving cards, firmware, source timing, cable mapping and any brightness-sensor accessory before ordering. The model-specific specification used here does not list a dedicated 3D function, so verify any special-mode requirement for the supplied revision. For a higher-capacity controller with documented 4K60 input, compare the Kystar S10 using its own specifications.
Frequently asked questions
What is the S6 maximum LED load?
The maximum total is 2.35 million pixels, with up to 650,000 pixels per Gigabit output.
Does S6 accept 4K input?
The documented standard HDMI/DVI input limit is 2048 × 1152 at 60Hz. A 3840 × 2160 input is not listed.
Can S6 work without a video source?
Its passive calibration workflow can operate without an active video source. Normal video display still requires an appropriate source signal; the configuration USB connection is not described as an offline media player.
Conclusion
S6 provides HDMI/DVI sending, six Ethernet outputs and calibration tools for an LED display within a 2.35-million-pixel budget. Check both the full-screen pixel count and each output chain, then confirm the receiving system and source timing. Consult the official Kystar S6 page and the preserved exact-model specification below.

Download Specification:
Kystar S6 LED Display Control System Sending Box Specification(Chinese)




