1. Product Overview
The NovaStar MSD300 is an LED control card designed for sending video and control signals to LED display screens. It supports various input resolutions and offers robust performance for professional LED display applications. This manual provides essential information for the proper installation, operation, and maintenance of your MSD300 sending card.

Figure 1: Front view of the NovaStar MSD300 LED Control Card, showing various components and connectors.
Key features include support for input resolutions such as 1280×1024, 1024×1200, 1600×848, 1920×712, or 2048×668, with a capacity of 1.3 million pixels. It operates on a 5.0V supply voltage and uses a USB interface for control. Video input is via DVI, and audio input is through a 3.5mm jack. The card outputs video in RGB format through two Ethernet ports and includes a light sensor interface.
2. Package Contents
Upon opening the package, verify that all components are present and undamaged. The standard package typically includes:
- NovaStar MSD300 Sending Card
- DVI Cable
- USB Cable
- Power Cable (if applicable)
- Software CD/USB drive (or download instructions)
Video 1: Unboxing of the NovaStar MSD300 sending card, showing the packaging and included accessories. This video demonstrates the typical contents you should expect to find in your product package.

Figure 2: The NovaStar MSD300 sending card displayed with its retail packaging and essential accessories, including cables and documentation.
3. Setup and Installation
Follow these steps to properly install your NovaStar MSD300 sending card into your computer system.
3.1 Physical Installation
- Power Off: Ensure your computer is completely powered off and unplugged from the power source.
- Open Case: Open your computer case to access the motherboard's PCI-E slots.
- Insert Card: Carefully insert the MSD300 sending card into an available PCI-E slot. Ensure it is seated firmly.
- Secure Card: Secure the card with the retaining screw or clip provided by your computer case.
- Close Case: Close the computer case and reconnect all cables.

Figure 3: Close-up view of the NovaStar MSD300's external ports, including DVI, USB, audio, and Ethernet connectors, essential for system integration.
3.2 Driver and Software Installation
- Power On: Power on your computer.
- Install Drivers: Insert the provided software CD/USB drive or download the latest drivers and control software (e.g., NovaLCT-Mars) from the official NovaStar website.
- Follow Prompts: Follow the on-screen instructions to install the drivers and software. Restart your computer if prompted.
- Connect Cables: Connect your DVI video source to the DVI input on the MSD300 card. Connect the Ethernet output ports to your LED display receiving cards. Connect the USB control cable from the MSD300 to your computer.
4. Operating Instructions
Once installed, configure and operate your MSD300 sending card using the NovaStar control software.
- Launch Software: Open the NovaLCT-Mars software on your computer.
- Detect Card: The software should automatically detect the MSD300 sending card. If not, ensure USB connection is secure and drivers are correctly installed.
- Screen Configuration: Navigate to the screen configuration section. Here you will define the resolution, refresh rate, and other parameters of your LED display.
- Sending Card Settings: Configure the sending card's output resolution to match your video source and LED display requirements.
- Display Content: Once configured, the MSD300 will send the video signal from your computer to the connected LED display.

Figure 4: Rear view of the NovaStar MSD300 LED Control Card, showing the circuit board layout and various electronic components.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your MSD300 sending card.
- Keep Clean: Regularly clean the card and surrounding area within the computer case to prevent dust buildup, which can lead to overheating. Use compressed air for this purpose.
- Environmental Conditions: Operate the card within recommended temperature and humidity ranges. Avoid extreme conditions.
- Software Updates: Keep the NovaStar control software and drivers updated to the latest versions for improved performance and compatibility.
- Secure Connections: Periodically check all cable connections (DVI, USB, Ethernet) to ensure they are secure and free from damage.
6. Troubleshooting
This section addresses common issues you might encounter with the MSD300 sending card.
6.1 No Signal on LED Display
- Check Cables: Ensure all DVI, USB, and Ethernet cables are securely connected.
- Power: Verify the computer and LED display are powered on.
- Drivers: Confirm that the MSD300 drivers are correctly installed and updated.
- Software Configuration: Check the NovaLCT-Mars software for correct screen and sending card configurations. Ensure the output resolution matches the display.
- Video Source: Test the DVI video source with another display to ensure it is functioning correctly.
6.2 Display Flickering or Incorrect Colors
- Cable Quality: Use high-quality DVI and Ethernet cables. Damaged or low-quality cables can cause signal issues.
- Refresh Rate: Adjust the refresh rate settings in the NovaLCT-Mars software.
- Resolution: Ensure the output resolution from the sending card matches the native resolution of the LED display.
- Grounding: Verify proper grounding of all equipment to prevent electrical interference.
7. Specifications
Detailed technical specifications for the NovaStar MSD300 LED Control Card.
| Feature | Specification |
|---|---|
| Input Resolution | 1280×1024, 1024×1200, 1600×848, 1920×712, 2048×668 (customizable) |
| Capacity | 1.3 million pixels |
| Supply Voltage | 5.0V |
| Control Method | USB Interface |
| Video Interface | DVI |
| Audio Interface | 3.5mm |
| Video Format | RGB |
| Output Interface | 2 Ethernet ports |
| Bit Depth Of Video Resource | 8bit |
| Light Sensor Interface | 1 |
| Certifications | RoHS, CE |
| Item Weight | 7 ounces (0.2 Kilograms) |
| Product Dimensions (LxWxH) | 8.27 x 0.39 x 4.72 inches |
| Operating System Compatibility | Windows, macOS, Linux |
| Hardware Interface | USB |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your product or visit the official NovaStar website. Ensure you retain your proof of purchase for warranty claims.
Legal Disclaimer: International buyers are responsible for any custom duties or import taxes. These charges are not included in the item price or shipping cost. Please consult your local customs office for additional information before purchase.







