NEC MultiSync MA551 LCD 55' Message Advanced Large Format Display

The NEC MultiSync MA551 is a high-performance, industrial-grade 55″ large-format display designed for demanding digital signage environments. Featuring a 4K (3840 × 2160) IPS panel, the MA551 delivers exceptional clarity, wide viewing angles, and natural color reproduction with 1.07 billion colors (10-bit depth) and 86% DCI-P3 gamut. Its edge LED backlight provides a sustained brightness of 500 cd/m², making it easily readable in bright public or corporate spaces.

Built for continuous operation, the MA551 supports 24/7 usage, thanks to its rugged design and industrial-grade components. Its intelligent heat management and metal rear housing ensure reliable, fire-retardant performance. High contrast (up to 8000:1 with local dimming) and a pro-level antiglare screen (28% haze) improve visual quality in various lighting conditions.

The modular architecture of the MA551 incorporates Open Modular Intelligence: it supports Intel® SDM (Smart Display Modules) up to 66 W and includes a slot for a Raspberry Pi Compute Module 4. This makes it highly flexible for embedded computing and media playback without external boxes.

Connectivity is robust: it includes 2 × HDMI, 2 × DisplayPort, loop-out ports, USB (for service or media), RS-232, LAN, and remote control jack. For control and automation, it also has sensors such as ambient light and temperature sensors, enabling adaptive brightness and thermal management.

On the content side, the display supports advanced picture-in-picture and quad-split modes, enabling versatile layout options for digital signage compositions. There’s also factory calibration (gamma, RGB, uniformity, white point) for color consistency and accuracy.

Mechanically, the MA551 is VESA mountable (300 × 300 mm, M6) and supports various orientations, including landscape, portrait, and face-up installation. It is ENERGY STAR–ready, with very low standby power consumption (< 2 W in networked mode), and it features front IP5x protection and IP2x on the back for durability in public settings.

With a 3-year warranty (standard for many regions), the MA551 is a reliable, feature-rich solution for retail, transportation, hospitality, corporate, and other high-use digital signage scenarios.