Dahua LCH75-MC410-B 75″ 4K Smart Interactive Whiteboard (LCH75-MC410-B)

The Dahua LCH75-MC410-B is a 75-inch 4K Smart Interactive Whiteboard designed for classrooms, offices, conference rooms, and collaborative workspaces. It combines a high-resolution display with a responsive IR touchscreen, supporting both Android and Windows systems (via an optional PC module). With wireless screen sharing, multi-user stylus input, and native Office software support, it enables seamless interactive presentations and digital collaboration. Equipped with a built-in 5MP camera, dual microphones, and high-fidelity speakers, the LCH75-MC410-B facilitates video conferencing, multimedia playback, and professional content sharing, while customizable startup channels, wired and wireless network support, and durable design make it ideal for professional and educational environments.

Product Features

4K High-Definition Display

The 75-inch DLED panel provides a 3840 × 2160 resolution, 350 nits brightness, 16:9 aspect ratio, and wide 178° viewing angles, delivering crisp, vivid visuals for presentations, video, and digital content.

Smart Interactive Touch

Supports 20-point IR touch with stylus or finger input, <10 ms response time, and high touch precision, enabling multiple users to write and interact simultaneously.

Dual-System Compatibility

Works with Android 9.0 out of the box and supports Windows via an optional PC module. Offers native Office software compatibility, media playback, and multi-device wireless screen sharing.

Built-in Multimedia Components

Includes a 5MP camera, dual microphones with echo cancellation, dual 15W full-frequency speakers, and support for wired/wireless networks to facilitate video conferencing and interactive sessions.

Flexible Connectivity

Offers HDMI IN, USB 3.0, Micro USB, RS-232, RJ-45 Ethernet, 3.5 mm audio out, IR, and Wi-Fi hotspot capabilities, providing comprehensive options for integrating with external devices.

Durable Design and Easy Installation

Constructed with metal casing and anti-dazzle tempered glass, the whiteboard can be wall-mounted or used with a mobile bracket. Designed for high durability and professional use.

Product Specifications

• Display size: 75 inches
• Panel type: DLED
• Aspect ratio: 16:9
• Resolution: 3840 × 2160 (UI: 1920 × 1080)
• Brightness: 350 cd/m²
• Static contrast ratio: 1200:1
• Viewing angle: 178° horizontal / 178° vertical
• Refresh rate: 60 Hz
• Lifespan: 50,000 hours
• Operating system (external module): Android 9.0
• CPU: Quad-core A55, 1.9 GHz
• GPU: Mali-G31 MP2
• RAM: 4 GB
• Internal storage: 32 GB
• Supported OS: Windows 7/8/10, Android
• Wireless connectivity: Dual-band Wi-Fi 2.4/5 GHz, hotspot supported
• Touch technology: IR touch, 20 points, <10 ms response, stylus/finger input
• Writing mode: Finger + stylus pen
• Touch resolution: 32767 × 32767
• Camera: 5 MP, auto white balance, distortion ≤5%, max resolution Android: 1080p@30fps, OPS: 2560 × 1440@30fps
• Field of view: H 84.5°, V 54°, D 93.1°
• Microphones: 2, far-field pickup 6–8 m, omnidirectional, AGC, echo cancellation, intelligent noise filtering
• Speakers: 2 × 15W full-frequency
• Video formats: MP4, AVI, MOV, ASF, MKV, WMV
• Audio formats: MP3, WMA, WAV
• Network port: 1 × RJ-45 10/100/1000 Mbps
• USB ports: 3 × USB 3.0, 1 × Micro USB, 1 front USB 3.0
• RS-232 port: 1
• HDMI input: 1 × HDMI IN
• Audio output: 1 × 3.5 mm line out
• IR receiver: 1
• Power supply: 100–240 VAC, 50/60 Hz
• Power consumption: 300 W
• Standby power consumption: 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
• Product material: Metal casing with anti-dazzle tempered glass
• Frame color: Bottom silver; top/left/right black
• Product dimensions (L×W×H): 1,707.2 × 87.1 × 1,066.4 mm
• Packaging dimensions (L×W×H): 1,810 × 235 × 1,157 mm
• Net weight: 54 kg
• Gross weight: 65 kg
• Mounting: Wall mount or mobile bracket
• Included accessories: 2 stylus pens, 3 power cords, quick start guide, wall mount bracket, accessory package