NEC M491 49" UHD Professional Display - M491
Create pixel-perfect imagery with the high-end panel quality of the fully professional NEC M491 Series large format displays. By focusing on customer needs while also offering professional reliability, the M series displays give customers a digital signage display lineup without all the costs. The M series can support both landscape and portrait orientations while also allowing the modularity possibilities to customize their needs dependent on their application and use. The new series contain a full metal mechanical chassis, allowing for a more robust design necessary for commercial applications while maintaining the attractive aesthetics that allow the focus of onlookers to be on what matters – the message. Simple and targeted connectivity options allow customers to have the up-to-date options that they need while not having to overpay for excess and unused interfaces. The NEC M series boasts 500 cd/m² brightness which is ideal for a majority of digital signage applications in corporate, higher education, restaurant, retail and grocery store environments when the focus should be on the message, not the budget.
Features
- 3840 x 2160 (4K UHD) Resolution
- 500 cd/m2 brightness
- Landscape/Portrait Orientation
- 
4K UHD native resolution allows for crystal clear imagery and messaging that become more vivid and lifelike than ever before!
- 
Landscape and Portrait orientation allows for flexibility of installation dependent on your needs
- 
Accepts Intel Smart Display Module Small or Large allowing for sleek all-in-one intelligence and interoperability in a small form factor setting by accepting Intel processor-based products and other peripherals directly into the displays
- 
Raspberry Pi Compute Module 4 allows for future proof expansion and NEC Mediaplayer support (Q2 2021)
- 
Bidirectional and Full External Control allows for easy integration into control systems via LAN or RS232C
- 
500 cd/m2 brightness and HDR compatibilty will capture the attention of audience in almost any situation
- 
Integrated Media Player allows for audio, video or image playback via USB
- 
Failover Capabilities with full Input Detect functionality allow peace of mind as the display will automatically switch to a secondary or tertiary source if the primary source fails
- 
Integrated Ambient Light Sensor allows the display to autmatically adjust its luminance based on external brightness conditions
- 
NaViSet Administrator 2 Free software solution that greatly eases administration and management of larger display device installations




Specifications
| Contrast Ratio | 8000:1 | 
| Viewing Angle | Hor 178°, Ver 178° | 
| Response Time | 8ms | 
| Sound Output | 10W x 2 | 
| Monitor Configuration | Digital Signage | 
| Native Resolution | 3840 x 2160 | 
| Display Orientation | Landscape & Portrait | 
| WiFi | Yes | 
| Refresh Rate | 60Hz | 
What our Expect Think
- 
Crisp UHD Resolution – With a 49" screen and Ultra HD resolution, the NEC M491 delivers stunning image clarity and vivid colors, making it ideal for professional environments, digital signage, and presentations.
- 
Slim Design & Versatile Mounting – The sleek, narrow bezel design and flexible mounting options make this display perfect for multi-screen setups and integration into a variety of spaces.
- 
24/7 Operation – Built for continuous operation, the NEC M491 is reliable for round-the-clock use, ideal for high-traffic commercial applications such as airports, retail environments, and lobbies.
- 
Wide Viewing Angles – The advanced IPS technology ensures a wide viewing angle, providing consistent image quality from virtually any perspective in a room.
- 
Smart Connectivity – Equipped with multiple connectivity options such as HDMI, DisplayPort, and USB, the M491 can handle diverse content sources for seamless display solution
Q&A
Q: What is the NEC M491 49" UHD Professional Display?
A: The NEC M491 is a 49-inch Ultra High Definition (UHD) professional display designed for business, retail, and public environments, delivering crystal-clear visuals with superior image quality.
Q: What resolution does the NEC M491 offer?
A: The NEC M491 features a 4K UHD (3840x2160) resolution, providing exceptional image clarity for detailed and vibrant content delivery.
Q: Is the NEC M491 suitable for 24/7 operation?
A: Yes, the NEC M491 is built for continuous 24/7 operation, making it ideal for commercial environments that require reliable, all-day performance.
Q: Does the NEC M491 support multiple connectivity options?
A: Yes, the NEC M491 supports a variety of input options, including HDMI, DisplayPort, and USB, for flexible connections with various devices and systems.
Q: Can the NEC M491 be mounted?
A: Yes, the NEC M491 is VESA compatible, allowing easy wall mounting for a clean, professional setup in any commercial space.
Maintenance Tips
- 
Clean the Screen Regularly – Use a microfiber cloth and non-abrasive cleaner to wipe the screen and remove dust and fingerprints. Avoid using harsh chemicals.
- 
Check the Cables – Inspect all cables (HDMI, power, etc.) to ensure they are securely connected and in good condition. Replace any damaged cables.
- 
Ventilation – Ensure the display’s ventilation areas are clear of dust and debris to maintain proper airflow and prevent overheating.
- 
Turn Off When Not in Use – Power off the display during extended periods of inactivity to save energy and prolong the life of the components.
- 
Software & Firmware Updates – Regularly check for firmware and software updates to ensure the display operates at peak performance.