Optoma N3751K Professional Digital Signage Display 75″ 4K Ultra HD LED Wi-Fi Android 11 24/7 Black
£1,646.44
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About this item
- 75 inch 4K Ultra HD LED display with Direct-LED backlighting and 450 cd/m² brightness
- 50000 hours rated lifetime for continuous 24/7 professional operation
- Android 11 operating system including 4 GB internal memory and 32 GB storage
- Wi-Fi 6 and Ethernet LAN support alongside four HDMI 2.0 ports and USB connectivity
- Slim 1.59 cm bezel with VESA 800 x 600 mm mounting for versatile installation
- Dual built-in speakers rated at 10 W RMS with remote control included
- Optimised for digital signage and hybrid collaboration with Creative Cast and remote management features
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Optoma N3751K – Professional 75in Digital Signage Solution
We recommend the Optoma N3751K Professional Digital Signage Display 75″ 4K Ultra HD LED Wi-Fi Android 11 24/7 Black for enterprise environments. It handles continuous operation without overheating. This display suits lobbies, lecture halls, and conference rooms. You get clear visuals even in bright light.
Core technical metrics
| Metric | Specification |
|---|---|
| Screen Size | 75 inches |
| Resolution | 4K Ultra HD |
| Operating Hours | 24/7 |
| Operating System | Android 11 |
| Brightness | 450 cd/m² |
Built-in Android media management
The integrated Android 11 system runs apps directly. You do not need an external PC for basic playback. Users can schedule playlists via the built-in media player. File sharing works through popular cloud services.
Flexible connectivity for any source
Four HDMI ports allow multiple device connections easily. Wi-Fi 6 ensures stable wireless streaming. The RS-232 interface supports remote IT management. You can also connect a keyboard for interactive use.
Designed for round-the-clock operation
This panel is rated for 24/7 use. It maintains performance during long daily shifts. Direct-LED backlighting provides consistent brightness levels. The 50,000-hour lifetime reduces replacement costs.
Mounting and orientation options
Install the screen horizontally or vertically as needed. The VESA 800 x 600 mm interface fits standard mounts. Slim bezels create a seamless look on multiple units. Wall mounting is supported for permanent setups.
What you receive
We include a remote control for daily operation. An HDMI cable is provided for immediate setup. Please check your existing cabling for other connections.
Before you order
- Confirm your wall can support the 4.8 kg weight.
- Verify you have space for the 75 inch width.
- Check your power outlet matches the 100-240 V range.
Frequently Asked Questions
Q: Can this display run vertically?
A: Yes, it supports both horizontal and vertical orientations.
Q: Does it support Wi-Fi 6?
A: Yes, it includes Wi-Fi 6 for faster streaming.
Q: How many HDMI inputs are available?
A: There are three HDMI input ports on the rear.
Q: Is an OPS slot included?
A: Yes, the unit features one standard OPS slot.
Q: What is the typical power consumption?
A: It typically consumes 235 watts during operation.
Our verdict on the Optoma N3751K Professional Digital Signage Display 75″ 4K Ultra HD LED Wi-Fi Android 11 24/7 Black
This display is ideal for businesses needing reliable signage. It balances performance with energy efficiency.
| Display | |
|---|---|
| LED backlight | Yes |
| Display number of colours | 1.073 billion colours |
| LED backlighting type | Direct-LED |
| Display technology | LED |
| Display diagonal | 190.5 cm (75") |
| Display resolution | 3840 x 2160 pixels |
| Display brightness | 450 cd/m² |
| HD type | 4K Ultra HD |
| Response time | 8 ms |
| Contrast ratio (typical) | 1200:1 |
| Contrast ratio (dynamic) | 3000:1 |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Number of displays | 1 |
| Rated lifetime | 50000 h |
| Haze rate | 25% |
| Ports & interfaces | |
| USB port | Yes |
| HDMI version | 2.0 |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| Wi-Fi | Yes |
| Ethernet LAN | Yes |
| HDMI ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| RS-232 interface | Yes |
| USB version | 2.0 |
| USB ports quantity | 3 |
| HDMI input ports quantity | 3 |
| HDMI output ports quantity | 1 |
| USB 2.0 Type-B ports quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 1 |
| Audio | |
| Number of built-in speakers | 2 |
| RMS rated power | 10 W |
| Built-in speakers | Yes |
| Design | |
| Product design | Digital signage flat panel |
| Placement supported | Indoor |
| Orientation | Horizontal/Vertical |
| Bezel width (top) | 1.59 cm |
| Bezel width (side) | 1.59 cm |
| Bezel width (bottom) | 1.59 cm |
| Product colour | Black |
| Panel mounting interface | 800 x 600 mm |
| VESA mounting | Yes |
| Screen shape | Flat |
| Wall mountable | Yes |
| Performance | |
| Purpose | Universal |
| Operating hours (hours/days) | 24/7 |
| On Screen Display (OSD) languages | Arabic, Simplified Chinese, Traditional Chinese, Czech, Danish, German, English, Spanish, French, Italian, Polish, Portuguese, Romanian, Russian, Swedish, Turkish |
| Number of OSD languages | 17 |
| Wi-Fi | Yes |
| Power | |
| Power consumption (max) | 425 W |
| Power consumption (typical) | 235 W |
| Power consumption (standby) | 0.5 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Computer system | |
| Operating system installed | Android 11 |
| Internal memory | 4 GB |
| Internal storage capacity | 32 GB |
| Weight & dimensions | |
| Weight (with stand) | 4.8 kg |
| Display width | 1685.6 mm |
| Display depth | 81.6 mm |
| Display height | 963.7 mm |
| Display weight | 3.4 kg |
| Packaging content | |
| Remote control included | Yes |
| Cables included | HDMI |
| Operational conditions | |
| Operating temperature | 0 - 40 °C |
| Technical details | |
| VESA mounting | Yes |
| LED backlighting type | Direct-LED |
| Audio out (mini jack) | 1 |
| OPS slot | 1 |
| Weight (with stand) | 4.8 kg |
| Thin Client | |
| Operating system installed | Android 11 |
| Internal memory | 4 GB |
| Internal storage capacity | 32 GB |
| Packaging data | |
| Remote control included | Yes |
| Cables included | HDMI |
| Features | |
| Base colour | Black |
| Suitable for indoor use | Yes |
| Wall mountable | Yes |
| Other features | |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| Wi-Fi | Yes |
| Power consumption (max) | 425 W |
| Display technology | LED |
| Bezel width (top) | 1.59 cm |
| Bezel width (side) | 1.59 cm |
| Bezel width (bottom) | 1.59 cm |
| Weight (with stand) | 4.8 kg |
| Identifiers | |
| Additional EANs | 0796435690472 |
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