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:

 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​