The NEC 55" LED-Backlit Ultra-Narrow Professional-Grade Large-Screen Display takes your LCD video walls to new levels of impact. This professional-grade large-screen display is designed for the rigors of 24x7 operation while introducing new levels of impact to your facility. Advanced technologies of this model include direct LED backlighting for improved uniformity, full high-definition resolution (1920 x 1080) and a 5.5 mm distance between active screen areas. Additionally, this display can be deployed in video walls up to 10 x 10 (100 displays). The X551UN also offers Intel's Open Pluggable Specification (OPS), which is the first industry-wide standardization in option slots that allows easier installation, use and maintenance of digital signage.