NovaStar H2 vs H5 vs H9 vs H15 vs H20: Which LED Video Wall Processor Should You Choose in 2026?

Choosing the right LED video wall processor is an important step in designing a professional LED display system. The processor determines how video sources are managed, how display layouts are configured, and how the LED screen receives and displays image data.

NovaStar's H Series includes five main chassis models: H2, H5, H9, H15, and H20. They share a modular design concept, but differ significantly in chassis size, input and output card capacity, supported processing configurations, and potential LED loading capacity.

This guide compares the five models to help LED display buyers, AV integrators, rental companies, and project contractors choose the right solution.

Table of Contents

1. What Is the NovaStar H Series?

2. NovaStar H2 vs H5 vs H9 vs H15 vs H20: Comparison Table

3. NovaStar H2: A Compact Modular Solution

4. NovaStar H5: A Flexible Mid-Range Processor

5. NovaStar H9: For More Complex Video Wall Systems

6. NovaStar H15: For Large and Advanced Installations

7. NovaStar H20: For High-Capacity Video Wall Projects

8. H9 Enhanced vs H15 Enhanced

9. How to Choose the Right NovaStar H Series Processor

10. Key Factors to Check Before Purchasing

11. Frequently Asked Questions

12. Conclusion

1. What Is the NovaStar H Series?

The NovaStar H Series is a family of modular video wall splicing processors designed for professional LED display applications.

Unlike a simple LED sending box, an H Series processor can be configured with different input, output, and LED sending cards. This modular architecture allows system integrators to build video processing systems around their project requirements.

Typical applications include:

• Control rooms and monitoring centers

• Broadcast studios and production facilities

• Corporate conference rooms

• Large-format indoor LED video walls

• Stage and live-event LED displays

• Command centers and exhibition halls

• Complex multi-screen installations

The most suitable model depends on the number of video sources, the required display layout, the total LED pixel count, and the output card configuration.

2. NovaStar H2 vs H5 vs H9 vs H15 vs H20: Comparison Table

The following figures are published comparison specifications for the H Series using the H_20xRJ45 LED sending card configuration. Actual capacity depends on the installed card type and product version.

*H9 Enhanced supports up to 10 output cards, while H15 Enhanced supports up to 16 output cards. The H15 Enhanced loading capacity can reach 208 million pixels with the specified H_20xRJ45 card configuration. Consult the official specifications for the exact hardware combination.

The table shows the general capacity progression: H2 is the most compact chassis, while H20 provides the largest expansion capacity in the standard H Series lineup.

Importantly, the chassis size alone does not determine the maximum pixel load. The selected sending card, output mode, firmware version, and other system configuration details also matter.

3. NovaStar H2: A Compact Modular Solution

The NovaStar H2 is the smallest chassis in this comparison, occupying 2U of rack space.

Its compact form factor can be attractive for projects where equipment space is limited and the required number of input and output cards is relatively small.

Key characteristics

• Compact 2U chassis

• Up to 4 input cards

• Up to 2 output cards

• Up to 26 million pixels with the specified H_20xRJ45 sending card configuration

• Support for irregular LED screen layouts

• HDR and 10-bit processing support

Potential applications

The H2 can be considered for compact video wall systems, smaller control rooms, and installations that need modular processing without a large equipment rack.

However, buyers should verify that its available card slots and output configuration can accommodate the entire project, including future expansion.

4. NovaStar H5: A Flexible Mid-Range Processor

The NovaStar H5 occupies 5U of rack space and offers more input and output expansion than the H2.

It can be a practical option when a project requires several video sources, more flexible screen management, or additional room for system configuration.

Key characteristics

• 5U chassis

• Up to 10 input cards

• Up to 3 output cards

• Up to 39 million pixels with the specified H_20xRJ45 sending card configuration

• Modular input and output architecture

• Preset management and multi-screen configuration

Potential applications

Consider the H5 for corporate AV installations, medium-sized LED video walls, exhibition projects, and other systems that need more expansion capacity than a compact processor.

When comparing H5 with H2, check the number and types of video inputs required. A larger number of input card slots does not automatically mean every card type can be installed simultaneously in every configuration.

5. NovaStar H9: For More Complex Video Wall Systems

The NovaStar H9 provides a 9U chassis with greater input and output expansion capacity than the H5.

It is worth evaluating when the project involves multiple video sources, several display regions, or more complex screen layouts.

Key characteristics

• 9U chassis

• Up to 15 input cards

• Up to 5 output cards in the standard version

• Up to 10 output cards in the H9 Enhanced version

• Up to 65 million pixels with the specified H_20xRJ45 sending card configuration in the published comparison

• More extensive layer and output expansion options

Potential applications

The H9 may suit advanced conference facilities, control rooms, exhibition spaces, and installations that require more extensive video processing and screen management.

Should you choose H9 or H9 Enhanced?

The Enhanced version is worth considering if your design requires additional output cards or greater layer capacity.

Before purchasing, request a configuration sheet showing the exact input cards, output cards, sending card types, and supported loading capacity. Do not assume that the standard and Enhanced versions have identical capabilities.

6. NovaStar H15: For Large and Advanced Installations

The NovaStar H15 uses a 15U chassis and supports significantly more expansion than the H9.

The standard H15 and H15 Enhanced versions have different published capabilities, so buyers should identify the precise version before comparing specifications or quotations.

Key characteristics

• 15U chassis

• Up to 30 input cards

• Up to 10 output cards in the standard version

• Up to 16 output cards in the H15 Enhanced version

• Up to 130 million pixels with the specified H_20xRJ45 sending card configuration for the standard version

• Up to 208 million pixels with that card configuration for H15 Enhanced

Potential applications

The H15 is worth evaluating for large LED video walls, advanced AV installations, broadcast environments, and projects that need a substantial number of processing and output resources.

For large projects, the design should account for the number of LED cabinets, receiving-card mapping, output-port allocation, input resolution, and redundancy requirements.

A processor with more slots is not necessarily the best option if the project does not need the additional capacity.

7. NovaStar H20: For High-Capacity Video Wall Projects

The NovaStar H20 is the largest chassis in this comparison, occupying 20U of rack space.

It offers the highest published pixel loading capacity among the five standard configurations in the comparison table, along with substantial input and output expansion.

Key characteristics

• 20U chassis

• Up to 40 input cards

• Up to 20 output cards

• Up to 260 million pixels with the specified H_20xRJ45 sending card configuration

• Support for complex multi-screen and irregular display configurations

• Extensive input and output expansion

Potential applications

The H20 is a candidate for very large LED video walls, major control centers, complex multi-display systems, and installations that require substantial processing expansion.

Before selecting H20, confirm that the project actually needs its higher capacity. A smaller model may deliver the required functionality at a lower overall system cost if its configuration meets the design requirements.

8. H9 Enhanced vs H15 Enhanced

The Enhanced versions are particularly important when planning a large video wall.

These are configuration-dependent specifications. Verify the current official datasheet and confirm which sending cards and output cards are included in the quotation.

9. How to Choose the Right NovaStar H Series Processor

Choose H2 if compactness is the priority

H2 may be appropriate when the project has a relatively limited number of sources and outputs and does not require extensive future expansion.

Choose H5 if you need additional flexibility

H5 is worth considering when the project requires more input cards and a greater degree of modular configuration than H2.

Choose H9 if the system is becoming more complex

H9 may be a suitable starting point for installations with more sources, multiple display regions, and greater output requirements. Consider H9 Enhanced if standard output capacity is insufficient.

Choose H15 if the project needs substantial expansion

H15 and H15 Enhanced are candidates for larger systems that need many input and output cards. Confirm the exact Enhanced configuration before comparing capacity.

Choose H20 if maximum expansion is required

H20 is worth evaluating when the project requires the largest chassis and the highest capacity among these standard models.

A simple selection checklist

Before choosing a processor, answer these questions:

1. What is the total LED screen resolution in pixels?

2. How many video sources need to be connected simultaneously?

3. Which input interfaces are required, such as HDMI, DisplayPort, SDI, or IP?

4. How many LED sending ports or output cards are needed?

5. Are multiple screens, irregular layouts, or independent display regions required?

6. Is redundancy or backup operation essential?

7. Will the system need additional capacity in the future?

The answers will help determine which chassis and card configuration is suitable.

10. Key Factors to Check Before Purchasing

Total pixel loading capacity

Calculate the complete LED screen resolution rather than estimating from the physical screen area alone.

For example, two LED walls with the same dimensions can have very different pixel counts if they use different pixel pitches.

Input card compatibility

Confirm the exact video sources, resolutions, refresh rates, and interfaces required by the project.

Output card configuration

The chassis capacity, sending card type, output mode, and number of connected LED ports all affect the final system design.

Redundancy and reliability

For mission-critical installations, discuss backup requirements, power redundancy, signal backup, monitoring, and recovery procedures with the system integrator.

Software and system compatibility

Verify compatibility with the intended control software, LED receiving cards, firmware, and the rest of the AV system.

Total system cost

Compare complete system quotations, including the chassis, input cards, output cards, sending cards, redundant power options, control software requirements, installation, and technical support.

11. Frequently Asked Questions

Q1: What is the main difference between NovaStar H2, H5, H9, H15, and H20?

The main differences are chassis size, input and output card capacity, supported system configurations, and maximum pixel loading capacity. H2 is the most compact model, while H20 offers the largest standard chassis and highest published loading capacity in this comparison.

Q2: Which NovaStar H Series processor supports the most pixels?

The H20 supports up to 260 million pixels with the specified H_20xRJ45 sending card configuration in the published comparison. Actual capacity depends on the installed card type and configuration.

Q3: What is the difference between H15 and H15 Enhanced?

The Enhanced version supports more output cards and a higher published loading capacity with the specified sending card configuration. Confirm the exact datasheet before purchasing.

Q4: Is H9 Enhanced better than the standard H9?

H9 Enhanced offers greater output-card expansion and higher layer capacity. Whether it is better depends on the project's actual input, output, and display requirements.

Q5: Can NovaStar H Series processors control multiple LED screens?

The H Series supports multi-screen configurations. The precise number of independent screens and available functions depends on the selected hardware, output configuration, and system design.

Q6: Can these processors be used for stage rental LED screens?

They can be considered for suitable professional LED display systems, but the required processing functions and capacity must be verified. Smaller rental setups may not need an H Series processor of this scale.

Q7: Does a higher model always provide better image quality?

Not necessarily. A larger processor primarily provides greater expansion and processing-system capacity. Image quality also depends on the input signal, processing configuration, LED receiving system, calibration, and LED display itself.

Q8: How do I calculate the required pixel capacity?

Multiply the total horizontal resolution by the total vertical resolution. For example, a 3,840 × 2,160 display contains 8,294,400 pixels. Then confirm that the selected processor and sending-card configuration can support the full screen and its operating requirements.

Q9: Are H2, H5, H9, H15, and H20 interchangeable?

No. They belong to the same product family but have different chassis sizes and expansion limits. Replacing one model with another requires checking the installed cards, available slots, cabling, and system configuration.

Q10: How can I get the correct processor quotation?

Provide the screen resolution, number of LED cabinets, number and type of video sources, required interfaces, output-port requirements, and redundancy needs. Ask the supplier to specify the exact processor version and card configuration in writing.

12. Conclusion

NovaStar H2, H5, H9, H15, and H20 serve different levels of LED video wall processing requirements.

• H2: Compact modular installations

• H5: Projects requiring more input and output flexibility

• H9: More complex multi-screen systems

• H15: Large installations requiring extensive expansion

• H20: High-capacity systems with substantial input and output requirements

The best processor is not necessarily the largest model. It is the model that satisfies the required pixel capacity, input interfaces, output configuration, reliability requirements, and future expansion plans.

For an accurate selection, consult the official NovaStar H Series specifications and confirm the exact hardware configuration with an experienced AV integrator or authorized supplier before ordering.