Dahua LDV55-SAI400K 55-Inch Floor-Standing Digital Signage Display (LDV55-SA1400K)

The Dahua LDV55-SAI400K is a professional 55-inch floor-standing vertical digital signage display built for high-impact commercial applications in retail, corporate, hospitality, education, and public spaces. Featuring an industrial-grade panel capable of continuous daily operation, integrated Android intelligence, and powerful multimedia decoding up to 4K resolution, this signage solution delivers reliable performance, flexible content scheduling, and centralized remote management through a unified platform. Its portrait orientation, robust connectivity, and enterprise-friendly features make it ideal for dynamic visual communication and brand engagement without touch interaction.

Product Features

Industrial-Grade Commercial Panel

Designed for commercial environments, the display uses a durable industrial-grade LED panel with a long lifespan and stable daily operation up to 16 hours.

Ultra-High-Definition Vertical Display

The 55-inch portrait screen supports a 2160 × 3840 resolution with wide viewing angles and rich color depth, providing clear visuals for digital content and signage messaging.

Smart Android Signage System

Equipped with a quad-core processor and Android operating system, the display enables smooth content playback, efficient multimedia decoding, and powerful on-screen presentation capabilities.

Intelligent Layout and Content Modes

With intelligent split-screen capability and flexible page layout adjustments, the signage adapts to various content types and presentation styles for diverse business scenarios.

Centralized and Secure Management

Built around a browser/server (B/S) architecture, the system supports time-based and location-based program scheduling, encrypted data transmission, multi-level permission control, and operational reporting for secure and efficient signage management.

Remote Platform Control

The display can be managed and monitored remotely through Dahua’s unified platform, allowing centralized updates, real-time status tracking, and simplified administration.

Product Specifications

• Product name: Dahua Floor-Standing Digital Signage Display
• Model number: LDV55-SAI400K
• Screen size: 55 inches
• Display type: LED backlight LCD
• Aspect ratio: 9:16 (vertical)
• Native resolution: 2160 × 3840
• Display colors: 1.07 billion (10-bit)
• Brightness: 320 nits
• Contrast ratio: 1200:1
• Viewing angle: 178° horizontal / 178° vertical
• Response time: 8 ms
• Panel lifespan: 30,000 hours
• Daily operation support: Up to 16 hours
• Processor: Quad-core Cortex-A17 up to 1.6 GHz
• Operating system: Android 8.1
• Memory (RAM): 2GB
• Internal storage: 16GB
• Smart signage platform: Media Publish System 3.0
• Supported media types: Video, audio, image, time, weather, countdown, text, web page, streaming media, PDF
• Video formats: MP4, AVI, MOV, ASF, WMV, MKV
• Audio formats: MP3, WMA, WAV
• Image formats: JPG, JPEG, GIF, BMP, PNG
• Document formats: PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, TXT
• Upload limits:
  • Video: up to 2GB per file, max 4K resolution
  • Audio: up to 500MB per file
  • Image: up to 30MB per file, max 4K resolution
  • Documents: up to 200MB per file
• Decoding capability:
  • 1 × H.265 4K @ 60 fps
  • 2 × H.264 4K @ 25 fps
  • 2 × H.265 1080p @ 30 fps
  • 4 × H.265 1080p @ 30 fps
• Input interfaces: 1 × RJ45, 2 × USB, 1 × TF card slot, 1 × HDMI, 1 × audio input
• External control: RJ45 (LAN), USB
• Wi-Fi: Optional
• Built-in audio: 2 × 5W speakers
• Power supply: AC 100–240V, 50/60 Hz
• Power consumption: ≤150W
• Standby power consumption: <0.5W
• Operating temperature: 0°C to 40°C
• Operating humidity: 10% to 85%
• Product dimensions: 1900 × 745 × 25.5 mm
• Package dimensions: 2020 × 915 × 200 mm
• Net weight: 50 kg
• Gross weight: 55 kg
• Included accessories: Power cord, floor-standing pedestal
• Optional mount kit: Not applicable