HD-R732 Receiving Card for Fine-Pitch LED Walls
The Huidu HD-R732 provides eight integrated HUB320 interfaces for fine-pitch LED display systems. It supports conventional and PWM driver chips, with different maximum loading dimensions for each chip type.
| Parameter | Specification |
|---|---|
| Module interfaces | 8 × HUB320 |
| Driver-chip support | Conventional and PWM chips |
| Conventional-chip maximum load | 160 × 1024 pixels |
| PWM-chip maximum load | 320 × 1024 pixels |
| Scan support | Static modules and scanning methods up to 1/128 |
| Data settings | Data-group exchange and offset adjustment |
| Configuration functions | Intelligent settings, sampling points and tracing points |
| Multi-card connection | Cascading; arbitrary card ordering |
Select the Loading Limit for the Driver Chip
Use 160 × 1024 as the stated maximum for conventional-chip modules and 320 × 1024 for PWM-chip modules. Match the HUB320 connection and scan method to the actual module when planning the cabinet.
Data-group exchange and offset settings support layout configuration. Multi-card cascading allows flexible card ordering across the display.
Wiring Diagram

Specification Download
Download the HD-R732 receiving-card specification (PDF)
Frequently Asked Questions
How many HUB320 interfaces does the HD-R732 have?
It integrates eight HUB320 interfaces.
What is the R732 maximum loading range?
The listed maximum is 160 × 1024 pixels with conventional chips or 320 × 1024 pixels with PWM chips. Choose the limit for the actual driver-chip type.
Does the card support 1/128 scan?
Yes. It supports static modules and scanning methods up to 1/128 scan.
Can I adjust data-group mapping?
Yes. The listed functions include data-group exchange and data-group offset settings, alongside intelligent settings, sampling points and tracing points.
Can multiple R732 cards be cascaded?
Yes. Multi-card cascading is supported with arbitrary card ordering.




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