Huidu HD-A3L LED Sending Box – USB & Wi-Fi Asynchronous Controller, 650K Pixel Capacity | For Entry-Level LED Screens
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Huidu HD-A3L LED Sending Box – USB & WiFi Asynchronous LED Controller with 650K Pixel Capacity for Digital Signage Displays
The Huidu HD-A3L LED sending box is a compact asynchronous LED display controller designed for entry-level LED screens and digital signage applications.
With support for up to 650,000 pixels, USB and WiFi connectivity, and flexible content management, it provides a reliable control solution for advertising displays, information boards, and retail LED signage systems.
Packing Details
| Version | Package Included |
| HD-A3L | 1 × HD-A3L Controller 1 × Power Cable 1 × User Manual |
About this item
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Supports 650,000 pixel capacity, suitable for small and medium LED display screens
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Asynchronous LED control system allows content playback without continuous PC connection
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Built-in USB and WiFi communication, enabling flexible program updates and remote management
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Compatible with Huidu LED control software and mobile applications for simple display management
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Supports multiple content formats including text, images, animations, and video playback
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Compact sending box design simplifies installation in LED display cabinets or control boxes
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Stable signal transmission ensures smooth playback for advertising and information displays
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Ideal for retail LED signage, storefront displays, and commercial LED information boards
Quick Specs
| Specification | Detail |
|---|---|
| Product Type | LED Sending Box |
| Model | Huidu HD-A3L |
| Control Type | Asynchronous LED Controller |
| Max Pixel Capacity | 650,000 Pixels |
| Communication | USB / WiFi |
| Supported Content | Text, Images, Animations, Video |
| Control Software | Huidu LED Control Software |
| Application | Digital Signage LED Displays |
| Power Supply | DC Power Adapter |
Installation & Maintenance Tips
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Install the sending box in a secure control cabinet or protected equipment enclosure
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Connect the LED display receiving cards using reliable network cables for stable communication
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Configure the display parameters using Huidu control software before uploading content
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Ensure stable power supply for continuous display operation
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Maintain proper ventilation in the controller area to prevent overheating
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Organize signal and power cables clearly for easier maintenance and troubleshooting
Shipping Information
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Lead Time: In-stock products ship within 1–3 business days
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Packaging: Anti-static protection with reinforced outer carton to ensure safe transportation
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Shipping Origin: Shipped directly from warehouse
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Standard Shipping: 9–18 days
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Express Shipping: 5–9 days
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Shipping Costs: Calculated at checkout based on destination and order quantity
Full Specifications
| Specification | Detail |
|---|---|
| Brand | Huidu |
| Model | HD-A3L |
| Product Category | LED Sending Box |
| Control Mode | Asynchronous Control |
| Max Pixel Capacity | 650,000 Pixels |
| Communication Interface | USB / WiFi |
| Supported Content Formats | Text, Image, Animation, Video |
| Control Software | Huidu LED Control Software |
| Network Interface | Ethernet |
| Storage | Built-in storage for program files |
| Power Supply | DC Power Adapter |
| Operating Temperature | −20 °C to 60 °C |
| Operating Humidity | 10%–90% RH |
| Installation Method | Control cabinet mounting |
| Application Environment | Indoor LED display systems |
Applications
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Retail LED digital signage displays
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Storefront advertising LED screens
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LED information boards for commercial spaces
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Transportation information LED displays
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Restaurant and menu LED display boards
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Small to medium LED advertising screens