Kystar H8S receiving card for LED display cabinets
The Kystar H8S receives display data from a compatible LED sending system and converts it into signals for the cabinet’s driver chips. Its documented maximum load is 512 × 640 pixels per card, equivalent to 327,680 pixels. It supports HDR10, calibration and mapping features for LED display setup and maintenance.
H8S is a receiving card, so its load describes the cabinet area controlled by one card. It does not describe a video input or media-decoding resolution. The whole display also depends on the sending controller, network mapping, module electronics and receiving-card configuration.
Verified specifications and revision notes
| Specification | Details |
|---|---|
| Model | H8S / H8s; verify the exact revision |
| Maximum documented load | 512 × 640 pixels per card |
| Connection design | High-density connectors; match the hub-board pinout |
| Data-group configuration | Official H8s page: 32 parallel groups or 64 serial groups, expandable to 128; retained v2.2 English specification: 40 parallel groups |
| Image features | HDR10; low-brightness grayscale; pixel calibration |
| Creative layouts | Mapping, irregular display configuration and image rotation |
| Monitoring | Temperature, voltage and network communication status |
| Backup / maintenance | Dual-card backup, dual-power detection, configuration readback and repair functions |
| Additional functions | External LCD module and module FLASH management with matching configuration |
| Supply reference | Retained specification recommends VCC 3.5–5.5V; verify the board and cabinet supply |
Display and maintenance benefits
- Image adjustment: use supported color reproduction and calibration features to tune the LED display.
- Creative mapping: configure irregular module arrangements and supported image rotation.
- Service information: monitor voltage, temperature and communication status during maintenance.
- Recovery tools: read back configuration data and use supported repair workflows when replacing a card.
- Redundancy: build a compatible dual-card arrangement and monitor the required dual-power connections.
Confirm the board revision before replacement
The H8S documentation has a data-group difference: the retained English v2.2 specification lists 40 parallel groups, while the official H8s page lists 32 parallel groups and serial-data options. Do not treat these interface descriptions as interchangeable. Match the actual card markings, revision, hub-board connectors, module scan configuration and driver chip before selecting a replacement.
The 512 × 640 figure is a maximum supported load, not a guarantee for every driver chip, scan mode or refresh setting. Confirm the cabinet configuration and desired grayscale or refresh behavior with the applicable firmware. HDR10 also requires a compatible source and sending/receiving workflow. Camera results depend on capture settings and display configuration; no universal absence of scan lines is promised.
Backup, LCD and module-FLASH functions require the corresponding wiring and compatible equipment. H8S and H8S Pro are separate models; use the exact board’s documentation. For the sending stage, review an appropriate controller such as the Kystar S10, then confirm compatibility for the actual receiving-card revision.
Frequently asked questions
How many pixels can one H8S receive?
The model documents list up to 512 × 640 pixels, or 327,680 pixels per card. The usable configuration depends on the module and output settings.
Is the H8S interface always 40 parallel data groups?
No single group count should be assumed across the referenced documentation. Verify the supplied card revision and connector definition against its matching specification.
Does dual-card backup work without extra wiring?
It requires a compatible backup-card configuration and the relevant connections. Check the complete cabinet design before relying on redundancy.
Conclusion
H8S provides receiving, image-adjustment and maintenance functions for an LED cabinet within the documented pixel load. Select it by the exact revision, hub pinout and driver-chip configuration. Compare the official Kystar H8s page with the preserved English specification below when confirming the supplied board.
Download Specification:
Kystar H8S LED Display Screen Receiver Card Specification
