Dahua 75″ 4K Display Smart Interactive Whiteboard

Dahua LCH75-MC410-B 75″ 4K UHD Smart Interactive Whiteboard, designed for collaborative environments such as classrooms and meeting rooms:

Product Features

Large 75-Inch 4K UHD Display

Delivers crystal-clear visuals with vibrant colors, ideal for presentations, lessons, and meetings.

Multi-Touch Interactive Technology

Supports up to 20 simultaneous touch points for smooth writing, drawing, and group collaboration.

Integrated Smart System

Equipped with an intuitive Android operating system, offering access to apps, annotation tools, and wireless sharing.

Wireless Screen Sharing

Allows easy casting from laptops, tablets, and smartphones for seamless collaboration.

Smart Annotation & Whiteboarding

Enables real-time writing, highlighting, and saving of notes directly on the screen.

Durable, Modern Design

Features anti-glare tempered glass and a sleek bezel for durability and professional aesthetics.

Product Specifications

 Display & Touch Technology

• Panel Size: 75 inches
• Resolution: 3840 x 2160 (4K UHD)
• Aspect Ratio: 16:9
• Brightness: 350 cd/m²
• Viewing Angle: 178° horizontal / 178° vertical
• Backlight: DLED
• Touch Technology: Infrared (IR)
• Touch Points: 20 simultaneous points
• Response Time: <10 ms
• Writing Modes: Finger and stylus pen
• Touch Resolution: 32,767 x 32,767
• Multi-user Writing: Supports up to 2 users simultaneously​

Built-in System

• Operating System: Android 9.0
• CPU: Quad-core ARM Cortex-A55, 1.9 GHz
• GPU: Mali-G31 MP2
• RAM: 4 GB
• Storage: 32 GB
• Wi-Fi: Dual-band 2.4 GHz / 5 GHz
• Wi-Fi Hotspot: Yes, supports simultaneous hotspot and Wi-Fi​

Connectivity & Ports

• USB Ports: 3 x USB 3.0, 1 x Micro USB
• Network Port: 1 x RJ-45
• Video Input: 1 x HDMI
• Audio Output: 1 x 3.5 mm Line Out
• RS-232: 1 x RS-232
• IR Receiver: 1
• Microphone: 2 built-in omnidirectional microphones​

Camera

• Resolution: 5 MP
• Field of View: 84.5° horizontal / 54.0° vertical / 93.1° diagonal
• Auto White Balance: Yes
• Max Resolution:
  • Android: 1080p @ 30 fps
  • OPS (Optional PC Module): 2560 x 1440 @ 30 fps
• Distortion: ≤5%​

Audio & Microphone

• Speakers: 2 x 15W full-frequency speakers
• Microphone Pickup Distance: 6–8 meters
• Microphone Features:
  • Automatic Gain Control (AGC)
  • Echo Cancellation
  • Intelligent Noise Filtering
  • Omnidirectional Polar Pattern​

General Specifications

• Power Supply: 100–240 VAC, 50/60 Hz
• Power Consumption: 300 W
• Standby Power: 0.5 W
• Operating Temperature: 0°C to +40°C
• Storage Temperature: –10°C to +50°C
• Operating Humidity: 10%–90% RH
• Storage Humidity: 10%–90% RH
• Material: Metal casing with anti-dazzle tempered glass (hardness 7 on Mohs scale)
• Frame Color: Silver bottom; black top, left, and right
• Dimensions (W x H x D): 1,707.2 mm x 1,050.1 mm x 87.1 mm
• Weight: Net: 54 kg; Gross: 65 kg
• Mounting: Wall mount or mobile bracket (VESA 400 x 600 mm)​

Included Accessories

• Smart interactive whiteboard
• Power cords (3)
• Stylus pens (2)
• Quick start guide
• Wall mount bracket (pre-installed)
• Accessory package​