Kystar KBS2000 Pro: 4K input and 20-port LED control
The Kystar KBS2000 Pro sends synchronous video to compatible LED receiving cards. It combines 4K60 HDMI/DisplayPort input with 20 Gigabit Ethernet outputs and a maximum LED load of 8.85 million pixels. HDR10/HLG, 3D LUT and Genlock make it useful when color mapping and synchronization are part of the display specification.
For concerts, exhibitions, conference displays and permanent installations, choose the controller by the LED canvas, per-port load and receiving-card configuration. Input resolution and LED output capacity are separate limits.
Specifications and connection limits
| Specification | Details |
|---|---|
| Product type | Synchronous LED sending controller / sending box |
| Video inputs | 1 × HDMI 2.0 and 1 × DP 1.2; up to 4096 × 2160 at 60 Hz |
| Total LED loading capacity | Up to 8,850,000 pixels per unit; individual port and mode limits also apply |
| Ethernet outputs | 20 × Gigabit Ethernet; up to 650,000 pixels per output; hot backup supported |
| Optical outputs | 4 × 10G optical ports: OPT1/OPT2 carry primary data; OPT3/OPT4 back up OPT1/OPT2 |
| Canvas dimension limit | Maximum width or height: 8000 pixels, within the total pixel budget |
| Video loop output | 1 × HDMI 2.0; selectable loop-through of HDMI or DP input |
| Image functions | HDR10, HLG, 3D LUT, brightness/color-temperature adjustment and passive calibration |
| Control and cascading | USB or Gigabit Ethernet configuration; up to eight units in a control cascade |
| 3D operation | Compatible 3D transmitter and glasses required; LED loading capacity is halved |
Loading example: a 3840 × 2160 canvas contains 8,294,400 pixels, below the stated total limit. This arithmetic does not confirm every configuration: refresh rate, receiving-card support, individual port loads and operating mode must also be checked. An 8000-pixel width or height limit does not mean an 8000 × 8000 canvas is supported.
Color, synchronization and installation features
- HDR and 3D LUT: use HDR10/HLG signals and 3D LUT files for the intended video color workflow. Confirm the source and receiving-card chain support the required configuration.
- Genlock: an external reference signal allows synchronization with the system timing source. This is distinct from connecting multiple units for centralized control.
- Passive calibration: supports brightness and chrominance correction with the Kystar calibration system without relying on an active video source.
- Flexible wiring: non-rectangular cable routing avoids allocating loading resources to unused screen areas.
- Spherical displays: built-in processing supports compatible KR, Hxs and Mx receiving-card configurations; confirm the exact card and firmware before ordering.
Plan fiber transmission and backup correctly
The four optical ports form two primary/backup pairs. OPT1 carries the data for Ethernet ports 1–10 and OPT2 for ports 11–20; OPT3 and OPT4 back up those respective outputs. Backup ports do not double the controller’s total pixel capacity.
The specification lists single-mode and multimode fiber options. Optical modules for OPT1–OPT4 are purchased separately or selected as options; confirm modules, fiber type, receiving equipment and transmission distance for your installation.
Frequently asked questions
Does the KBS2000 Pro support 4K at 60 Hz?
Yes. Its HDMI 2.0 and DP 1.2 inputs support up to 4096 × 2160 at 60 Hz. Separately, its stated LED loading limit is 8.85 million pixels.
Can all 20 Ethernet ports run at their maximum load at once?
Plan against both limits: up to 650,000 pixels per Ethernet output and 8.85 million pixels for the unit. Multiplying the per-port maximum by 20 does not increase the device’s total capacity.
What changes when using 3D?
A compatible 3D transmitter and 3D glasses are required. The specification states that loading capacity is halved in 3D mode; recalculate the screen layout before selecting equipment.
Is KBS2000 Pro the same model as KBS2000?
They are separate product models. Use the Pro-specific specification for HDR, 3D LUT, Genlock and port details. See the separate Kystar KBS2000 sending-box listing when comparing configurations.
Conclusion
The KBS2000 Pro suits LED walls that need 20-port synchronous transmission, 4K60 input, color adjustment and external synchronization. Confirm the complete pixel map, receiving cards, backup design and optional optical/3D accessories before ordering.
Manufacturer reference: Kystar KBS2000 Pro product information. The retained Chinese specification below provides the detailed connection requirements.
Product image and specification download
Download Specification:
Kystar KBS2000 Pro LED Display Control System Sending Box (Chinese)
