Description
Huidu HD-A3L Sending Box – 650,000 Pixels | Asynchronous Controller | Entry-Level LED Display Controller with USB & Wi-Fi for LED Display Screens
Package Included
| Version | Package Included |
| HD-A3L | 1 × HD-A3L Controller 1 × Power Cable 1 × User Manual |
About this item
- High-performance LED multimedia controller supporting asynchronous playback with up to 655,360 pixels loading capacity
- Compatible with multiple LED module pixel pitches, max width up to 8192 pixels
- Built-in Wi-Fi (2.4 GHz) and USB for convenient content updates without a PC
- Supports cloud platform “XiaoHui Cloud” and mobile APP “LedArt” for wireless control
- Compact design with passive cooling for long-term stability
- Ideal for commercial LED displays, smart display systems, and small to mid-size indoor/outdoor LED setups
Order & Logistics
- Lead Time: Typically ships within 2–5 business days
- Packing: Cardboard box
- Shipping: Ships from local warehouses (3–7 days) if available, or from headquarters (7–25 days standard / 3–10 days express)
Key Specifications
- Input Ports: None (asynchronous playback)
- Output Ports: 100 Mbps Ethernet
- Supported Resolutions: Up to 655,360 pixels (max width 8192 px)
- Control Method: USB, Wi-Fi 2.4 GHz, Cloud control
- Power Supply: DC input (via included adapter)
- Operating Temperature: –20 °C to +60 °C
Usage Notes / Installation Tips
- Always power off before connecting or disconnecting signal cables
- Use shielded network cables for stable data transmission
- Ensure adequate ventilation for prolonged operation
- Avoid placing the controller in high-humidity or dusty environments
Technical Specifications
| Picture |  |
 |
 |
 |
| Model | A6L | A5L | A4L | A3L |
| Loading Capacity | 2.62M pixels | 1.3M pixels | 655,360 pixels | 655,360 pixels |
| Max Width | 65,536 px | 16,384 px | 16,384 px | 8192 px |
| Memory | 64 GB | 16 GB | 16 GB | 16 GB |
| External Expansion | Max 128 GB | Max 128 GB | Max 128 GB | Max 128 GB |
| Video Hard Decoding | 4K | 4K | 4K | 4K |
| Video Signal Input | 1× HDMI | 1× HDMI | 1× HDMI | – |
| HDMI Cascade | √ | – | – | – |
| Streaming Media | √ | √ | √ | √ |
| LAN | 1000 Mbps | 1000 Mbps | 1000 Mbps | 100 Mbps |
| Wi-Fi Control | 5 GHz + 2.4 GHz | 5 GHz + 2.4 GHz | 5 GHz + 2.4 GHz | 2.4 GHz |
| USB Playback | √ | √ | √ | √ |
| Cloud Management | √ | √ | √ | √ |
| 4G/5G Module | Optional 4G/5G | Optional 4G/5G | Optional 4G/5G | Optional 4G |
| External Sensor | 2 channels | 2 channels | 2 channels | 1 channel |
Applications
- Fixed LED billboards
- Rental stage LED screens
- Indoor/outdoor advertising displays
- Conference / exhibition LED displays
- Smart commercial display systems