NovaStar MFN300 Multifunction Card Overview
The NovaStar MFN300 is an auxiliary multifunction card for LED display control systems. It combines power switching, sensor connections and audio output to help manage the display and monitor its operating environment.
Key Features
- 8-way power switch control: manage multiple power circuits in an LED display installation.
- Four light sensor connections: support automatic screen brightness adjustment with connected sensors.
- Temperature and humidity monitoring: connect a temperature and humidity module for environmental detection.
- RJ45 and RS232 communication: integrate with the receiving-card chain or a control computer.
- Integrated audio output and a timer function for scheduled control.
MFN300 Specifications
| Parameter | Specification |
|---|---|
| Brand / model | NovaStar / MFN300 |
| Communication | RS232 serial or Gigabit Ethernet |
| Power control | 8 channels |
| Light sensor connections | 4 |
| Supply voltage | 4.5–5.5 V; typical 5.0 V |
| Rated current | 0.38 A |
| Operating temperature | −20 to +75 °C |
| Net weight | 164.4 g |
Connection and Configuration
Connect by RS232 to the computer, or place the card in the Ethernet chain before the first receiving card, between receiving cards, or after the last receiving card. The manufacturer’s Rev2.1.0 guide describes configuration through Function Card Management in NovaLCT-Mars.
Before You Order
Check the exact model on your existing board, your controller and receiving-card models, the available power supply, and the sensor connections required for your installation. For a replacement, compare the board layout and connectors with the product photographs and specification before ordering.
Need help selecting the card? Contact us with your equipment models and a clear photograph of the existing board. Browse LED control card accessories for related components.
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Frequently Asked Questions
What is the MFN300 used for?
It adds auxiliary power control, sensor monitoring and audio output to an LED display system. Choose it when those functions are required alongside the display control equipment.
How many light sensors can it connect?
The MFN300 supports four light sensor connections. Check which sensors and cables are needed for your installation before ordering.
Is this the MFN300-B box?
This listing is for the MFN300 card. For the separately listed box model, see the NovaStar MFN300-B multifunction box and compare its specifications before selecting.
Download the MFN300 Specification
Download the MFN300 specification PDF (Rev2.1.0). Technical reference: NovaStar manufacturer specification.











