| Revew | Digital Signage Display Optoma N3551K 55"The Optoma N3551K is a 55-inch professional display from the N-Series, designed for digital signage in lobbies and reception areas, retail, meeting rooms and lecture halls. It shows 4K UHD images on a VA panel with Direct LED backlight, is built for 24/7 operation and can be installed in landscape or portrait orientation. Built-in Android 11 with a quad-core processor, 4GB RAM and 32GB storage runs the Optoma software: a media player with playlists and date and time scheduling, File Manager with cloud access, WhiteBoard. The display has 2 HDMI 2.0 inputs, USB-C, RJ45 and RS232 for remote control, and two built-in 10W speakers. 
Key features- 55-inch 4K UHD - VA panel with Direct LED backlight, 4,000:1 contrast (5,000:1 dynamic), 178-degree viewing angle and 6ms response time. A 25% haze coating reduces reflections.
- 24/7 operation - Built for round-the-clock use with a 50,000-hour backlight life. Install it in landscape or portrait, as a single display or across several displays.
- Built-in media player and scheduling - Create and edit playlists and schedule content for a specific date and time, with no external PC or player.
- Android 11 and Optoma apps - Quad A55 processor with Mali G51 GPU, 4GB RAM and 32GB storage. Built-in software: Optoma Management Suite, WhiteBoard, File Manager and Media Player.
- Connectivity and remote management - Inputs: 2 x HDMI 2.0, 1 x USB-C, 1 x USB 2.0, 1 x USB 3.2 Gen 1, RS232, RJ45. Outputs: 1 x HDMI 2.0, 3.5mm audio, S/PDIF. Remote management and control with Optoma Management Suite (OMS).
- Ready for meeting rooms - Compatible with web cameras, Bluetooth speakers and motorised trolleys. Wi-Fi is available with an optional wireless module.
Specifications| Manufacturer | Optoma | | Model | N3551K (H1F2C0MBW101) | | Series | N-Series Professional Displays | | Screen size | 55" | | Panel type | VA, Direct LED backlight | | Resolution | 3840x2160 (4K UHD) | | Brightness | 450 cd/m² | | Contrast | 4,000:1 (5,000:1 dynamic) | | Viewing angle | 178° | | Response time | 6ms | | Haze | 25% | | Operation | 24/7, 50,000-hour life | | Operating system | Android 11 (Quad A55, Mali G51, 4GB RAM, 32GB) | | Inputs | 2 x HDMI 2.0, 1 x USB-C, 1 x USB 2.0, 1 x USB 3.2 Gen 1, RS232, RJ45 | | Outputs | 1 x HDMI 2.0, 3.5mm audio, S/PDIF | | Speakers | 2 x 10W | | VESA | 400x200 | | Power consumption | Max 250W, average 150W, standby 0.5W | | Dimensions (W x H x D) | 1233 x 703.5 x 71.4 mm | | Weight | 13.4 kg |
In the box- Display
- 3 power cords (EU, US, UK)
- HDMI cable, 3 m
- Remote control and battery
- Quick start guide
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