55" LED-Backlit Ultra-Narrow Bezel Professional-Grade Large-Screen Display

The 55” NEC X554UNS sets the standard for video walls. With perfect picture quality and high product reliability, these displays are designed for the rigors of 24/7 operation. Advanced technologies of this model include direct LED backlighting for improved uniformity, full high-definition resolution (1920 x 1080) and a 3.5mm distance bezel width. NEC's vast experience in the video wall market is evident in the design of this product with features that reduce cost, ease installations and improve the visual impact of content in control rooms, broadcast studios, retail installations and as digital signage.

  • Auto ID feature reduces install time in the single press of a button
  • Expanded daisy chain options with DP1.2 enables 4K resolution
  • Dual slot technology allows for the integration of single board computers and other option slot products with the need to stow additional external equipment
  • 700cd/m² max brightness combined with full HD resolution will capture the attention of the audience
  • Industrial-strength, premium-grade panel with additional thermal protection, internal temperature sensors with self-diagnostics and fan-based technology, allows for 24/7 operation
  • Input Switching Speed minimizes downtime between source transitions
  • Human Sensor Accessory ensures digital signage is directed at a targeted audience
  • Near field communication capabilities for setup and service. More information can be found here
  • Available as a 2x2 video wall bundle (X554UNS-TMX4P)
  • Available as a 3x3 video wall bundle (X554UNS-TMX9P)
  • NaViSet Administrator 2: Free software solution that greatly eases administration and management of larger display device installations
  • Video daisy chain limitations apply when High-bandwidth Digital Content Protection (HDCP) is utilized

Manufacturer Part Number
Full Product Specifications


  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
  • These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.


Panel Technology: SPVA (P-DID): Aspect Ratio: 16:9
Native Resolution: 1920 x 1080: Backlight Type: LED Direct-lit
Brightness (maximum): 700cd/m2: Contrast Ratio (typical): 3500:1
Viewing Angle (typical): 178° Vert., 178° Hor. (89U/89D/89L/89R) @ CR>10: Refresh Rate: 60Hz
Active Screen Area: tbd: Orientation: Landscape/Portrait
Displayable Colors: More than 16.7 million:  

Synchronization Range

Horizontal (Analog/Digital): 31.5-91.1 kHz:  

Input Signal

Video: Analog RGB 0.7 Vp-p/75 Ohms: Sync: Separate sync: TTL Level (Positive/Negative)
Composite sync: TTL Level (Positive/Negative)
Composite sync on green: (0.3Vp-p negative 0.7Vp-p positive)

Signal Compatibility/Connectivity

PC Signal Compatibility: Yes: Macintosh Signal Compatibility: Yes
Video: Analog RGB 0.7 Vp-p/75 Ohms: Sync: Separate sync: TTL Level (Positive/Negative)
Composite sync: TTL Level (Positive/Negative)
Composite sync on green: (0.3Vp-p negative 0.7Vp-p positive)
Input Terminals


DisplayPort, HDMI, DVI-D


Audio Mini-Jack, DisplayPort Audio, HDMI Audio

External Control:


: Output Terminals




Audio Mini-Jack, External Speaker Jack (2)

External Control:


Power Consumption (typical)

On: 150W: ECO Mode Standby: <0.5W

Physical Specifications

Bezel Width (Left/Right, Top/Bottom):0.09 in. / 0.05 in., 0.09 in. / 0.05 in. ; 2.3mm / 1.2mm, 2.3mm / 1.2mm: Dimensions (WxHxD)

Net (with stand):

47.8 x 28.7 x 15.7 in. / 1213.5 x 709.3 x 400.0mm

Net (without stand):

47.8 x 26.9 x 4.0 in. / 1213.5 x 684.3 x 100.4mm


57.4 x 34.6 x 12.6 in. / 1459.0 x 880.0 x 320.0mm


78.7 lbs. / 35.7kg


Net Weight (with stand):

66.4 lbs. / 30.1kg

Net Weight (without stand):

61.5lbs /27.9kg


VESA Hole Configuration Specifications

400 x 400mm (4-hole):  

Environmental Conditions

Operating Temperature: 41-104°F / 5-40°C: Operating Humidity: 20-80%
Operating Altitude: 13,780 ft. / 4200m: Storage Temperature: -4-140°F / -20-60°C
Storage Humidity: 10-90%: Storage Altitude: 40,000 ft. / 12,192m

Limited Warranty (parts & labor)

1 year:  

Additional Features

  • Direct LED Backlighting
  • Advanced thermal capabilities
  • Ethernet Control and Communication
  • RS-232 Control and Communication
  • Landscape/portrait capable
  • Carbon footprint meter
  • Plug and Play (DDC/CI, DDC2B)
  • Scheduler (w/ real-time clock)
  • >
  • Screen saver function
  • Ambient light sensor (AmbiBright)
  • Screen saver function
  • Optional human sensor
  • Intelligent Wireless Data (Near Field Communications)
  • Second expansion slot
  • Expanded daisy chain (DP 1.2)
  • 6-axis color adjustment
  • Metal rear cabinet
  • POP
  • Side-by-Side
  • Handles
  • Variable picture modes
  • Advanced video settings (Noise Reduction, Adaptive Contrast)
  • Input labeling
  • Backlight adjust
  • Aspect ratio control
  • LED edge-lit backlighting
  • 10-bit color over HDMI
  • OPS/Expansion slot


Contrast Ratio 3500:1