Colorlight K9+ LED Receiving Card Overview
The Colorlight K9+ is a compact receiving card for fine-pitch LED display cabinets and high-end rental screens. It supports up to 32 parallel data groups or 64 serial data groups, with image adjustment, calibration and backup functions for cabinet integration.
A receiving card works inside the LED display system: a compatible sending device transmits display data to the card, which delivers it to the cabinet’s LED modules through the appropriate interface. Match the K9+ to your cabinet hardware and configuration before selecting it as a replacement.
Key Features and Specifications
| Feature | Details |
|---|---|
| Product type | LED receiving card; model K9+ |
| Data output | Up to 32 parallel or 64 serial data groups |
| Intended applications | Fine-pitch fixed installations and high-end rental LED cabinets |
| Video processing features | 8-bit, 10-bit and 12-bit video source support; HDR10 and HLG |
| Image adjustment | Independent RGB gamma, color temperature and gamut adjustment; Infi-bit extension and grayscale refinement |
| Calibration | Per-pixel brightness and chromaticity calibration, low-grayscale and multi-layer calibration |
| Cabinet functions | Seam correction, screen rotation, highlight/OSD and support for up to 16 intelligent modules |
| Monitoring | Cabinet temperature, humidity, voltage, power and Ethernet cable status with the required supporting hardware |
| Backup functions | Loop redundancy, dual receiving-card hot backup, PSU redundancy, firmware redundancy and readback |
Feature availability depends on the sender, driver IC, firmware, cabinet wiring and supporting hardware. Confirm the required operating mode for your complete display system.
Image Quality and Maintenance
For fine-pitch screens viewed at close range, brightness and color consistency matter across modules and cabinets. K9+ provides per-pixel calibration, low-brightness grayscale refinement and independent color adjustment to help tune the display. HDR operation requires a compatible source and control chain.
Maintenance features include quick firmware upgrades, calibration-coefficient downloads and firmware upgrades without a power restart. Monitoring and backup functions can support fault diagnosis and system redundancy when the cabinet is wired and configured for them.
Compatibility Checks Before Ordering
- Identify the exact board: compare the K9+ model marking, hardware revision and connector layout with your existing receiving card.
- Check the cabinet: confirm the HUB board, connector pinout, LED driver IC, scan mode and power requirements.
- Confirm the load: provide cabinet pixel dimensions, refresh-rate requirements and color-depth settings so the operating configuration can be checked.
- Plan commissioning: retain the existing screen configuration and calibration files, and confirm compatible sender and firmware versions.
For replacement advice, contact our team with photos of both sides of the existing card, the HUB board and the cabinet label. You can also browse our LED receiving cards.
Frequently Asked Questions
Is this product K9 or K9+?
This listing is for the Colorlight K9+. The product URL contains “k9”, but the listed model is K9+. Check the board label when matching a replacement.
How many data groups does the K9+ support?
It supports up to 32 parallel data groups or 64 serial data groups. The usable configuration depends on the connected LED modules and control settings.
Can it directly replace another receiving card?
Confirm compatibility first. A similar board size or connector appearance does not establish a matching pinout, driver configuration or firmware. Share the existing card and cabinet details before ordering.
Product Image and Specification Download

Download Specification:
Colorlight K9+ LED Display Screen Receiving Card Specification
For manufacturer documentation, visit the Colorlight K-series download center and select the K9+ document that matches your hardware.
Conclusion
The Colorlight K9+ is a receiving-card option for fine-pitch and rental LED cabinets that need flexible data outputs, image calibration and redundancy features. Confirm the cabinet interface, operating load and firmware compatibility to select the right card for your display.



