HD-RB6 Receiving Card for Compact LED Cabinets
The Huidu HD-RB6 supports synchronous and asynchronous control systems in thin cabinets, transparent displays, light-bar screens and film screens. Data output depends on the display design: up to 32 RGB parallel groups, 64 serial groups for transparent screens with expansion to 128, or 96 data groups for light-strip film screens.
| Parameter | Specification |
|---|---|
| Maximum loading capacity | 131072 pixels (256 × 512) |
| Recommended loading capacity | 98304 pixels (256 × 384) |
| RGB parallel data | Up to 32 groups |
| Transparent-screen serial data | 64 groups; expandable to 128 |
| Light-strip film-screen data | 96 groups |
| Sending equipment | Dual-mode sending box; asynchronous sending card; synchronous sending card; VP-series video processor |
| Module support | Common IC modules and most PWM IC modules |
| Scan mode | Static to 1/128 scan |
| Communication | Gigabit Ethernet |
| Grayscale | 256–65536 |
| Network cable distance | Within 80 m using Super Cat5 or Cat6 cable |
| Module connection ports | 2 × 84-pin |
| Input voltage | 3.8–5.5 V |
| Power | 2.5 W |
Match the Data Mode to the Screen
Choose the parallel or serial data arrangement for the actual module and screen type. These group counts describe different configurations and should not be added together. For loading, the specification distinguishes the 256 × 512 maximum from the recommended 256 × 384 configuration.
Smart settings support screen-unit layout configuration. Receiving cards can be connected in any sequence, and the integrated screen-test function supports checking brightness uniformity and display-module flatness.
Original Parameter and Appearance Images


Specification Download
Download the HD-RB6 specification (PDF)
Frequently Asked Questions
What is the HD-RB6 loading capacity?
The V0.1 specification lists a maximum of 131072 pixels (256 × 512) and a recommended load of 98304 pixels (256 × 384).
Does RB6 support transparent and film screens?
Yes. It supports transparent-screen serial data in 64 groups, expandable to 128 groups. Light-strip film screens support 96 data groups.
Can it work in both synchronous and asynchronous systems?
Yes. The specification lists dual-mode sending boxes, asynchronous and synchronous sending cards, and VP-series video processors.
What scan modes and module ports are available?
The card supports static to 1/128 scan and has two 84-pin connection ports.
What voltage does the RB6 require?
The input-voltage range is 3.8–5.5 V, and listed power is 2.5 W.




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