Dahua LCH75-MC410-B-S2 75 Inch 4K Smart Interactive Whiteboard

The Dahua LCH75-MC410-B-S2 is a 75-inch 4K UHD smart interactive whiteboard designed for modern classrooms, corporate meeting rooms, training centers, boardrooms, and collaborative workspaces. It combines a 3840 × 2160 resolution display with Android 14, 8 GB RAM, 64 GB storage, responsive infrared touch technology, digital whiteboard functionality, AI-assisted text and drawing recognition, built-in camera and microphone capabilities, and integrated 30 W stereo speakers. With support for external Windows modules, dual-band Wi-Fi 6, HDMI 2.0 inputs, USB connectivity, Type-C connectivity, and BYOM functionality, this Dahua interactive display provides a versatile platform for presentations, video conferencing, teaching, brainstorming, content sharing, and interactive collaboration.

Product Features

75 Inch 4K UHD Interactive Display

The 75-inch DLED display delivers 3840 × 2160 4K UHD resolution in a 16:9 aspect ratio, providing detailed images, presentations, videos, diagrams, and digital learning content. The 60 Hz refresh rate, 178-degree horizontal and vertical viewing angles, and 350 cd/m² typical brightness support clear viewing across meeting rooms and classrooms.

Android 14 Smart Operating System

Built on Android 14, the interactive whiteboard provides a modern smart display platform with 8 GB RAM and 64 GB ROM. Its quad-core A55 processor running at 1.9 GHz and ARM Mali-G52 MP2 GPU provide the processing platform for interactive applications and multimedia content.

Advanced Interactive Whiteboard Experience

The infrared touchscreen supports finger and pen interaction, handwriting recognition, pen writing, fast writing response, and pen pressure recognition. The system also supports AI recognition of text and drawings, helping users convert handwritten or drawn content into more usable digital material.

Multi-Touch Collaboration

The touchscreen supports up to 32 touch points on Android and up to 40 touch points on Windows, allowing multiple users to interact with content simultaneously. This makes the display suitable for collaborative teaching, group brainstorming, workshops, and business presentations.

48 MP AI Camera for Video Conferencing

The built-in camera provides up to 48 MP photo capability on Android and supports 4 MP video, with a maximum video resolution of 2560 × 1440 at 30 fps. Its 88-degree diagonal field of view helps capture participants during meetings and remote collaboration.

Built-In Microphone Array

The integrated microphone system provides long-range sound pickup of approximately 8 to 12 metres and includes automatic gain control, echo cancellation, omnidirectional pickup, and intelligent noise filtering. This helps support clearer audio during video meetings and presentations.

30 W Built-In Stereo Speakers

Two integrated speakers provide 2.0-channel audio with 2 × 15 W output. The built-in audio system is suitable for presentations, online lessons, video playback, and conferencing without requiring separate speakers for many installations.

Dual Wi-Fi 6 Connectivity

The Dahua LCH75-MC410-B-S2 supports Wi-Fi 6 connectivity in both station and access-point modes. This provides flexible wireless networking for online content, screen sharing, collaboration, and connected meeting environments.

HDMI 2.0 and Extensive Connectivity

The display includes two HDMI 2.0 inputs supporting 4K at 60 Hz, USB ports, RJ-45 Ethernet, a touch port, 3.5 mm line-out, RS-232, and Type-C connectivity. This enables connection to computers, laptops, presentation equipment, peripherals, and other AV devices.

Type-C and BYOM Support

The Type-C connection supports device connectivity and 5 W charging, while Dahua specifies BYOM functionality for using the whiteboard’s camera and microphone with compatible external devices. This is particularly useful for hybrid meetings and video conferencing.

Windows Compatibility

The interactive display supports external Windows modules, allowing users to operate Windows-based applications and software when the appropriate external module is installed. Dahua also states that Microsoft Office and other related software can be installed for productivity and presentation tasks.

Durable Anti-Glare Touch Surface

The screen uses 3.2 mm anti-dazzle tempered glass with a surface hardness of at least 9H. This provides a durable interactive surface while helping reduce distracting reflections during use.

Product Specifications

• Product model: Dahua LCH75-MC410-B-S2
• Display size: 75 inches
• Display type: DLED LCD
• Resolution: 3840 × 2160 pixels
• Aspect ratio: 16:9
• Refresh rate: 60 Hz
• Brightness: 350 cd/m² typical
• Viewing angle: 178° horizontal and 178° vertical
• Static contrast ratio: 1200:1 typical, IPS
• Response time: 8 ms typical
• Display colour: ≥72% NTSC
• Expected display lifespan: ≥50,000 hours
• Operating system: Android 14
• Processor: Quad-core A55
• CPU frequency: 1.9 GHz
• GPU: ARM Mali-G52 MP2 (2EE)
• RAM: 8 GB
• Internal storage: 64 GB
• External operating system support: Windows 7/8/10/11 through compatible external module
• Touch technology: Infrared
• Touch points: Up to 32 points on Android and 40 points on Windows
• Writing method: Finger and magnetic pen
• Touch resolution: 32767 × 32767
• Surface glass: 3.2 mm anti-dazzle tempered glass
• Surface hardness: ≥9H
• Camera: 48 MP photo capability on Android; 4 MP video
• Maximum camera video resolution: 2560 × 1440 at 30 fps
• Camera field of view: 88° diagonal, 79° horizontal, 51° vertical
• Microphones: 8-array microphone system
• Microphone pickup distance: 8 to 12 m
• Audio: 2.0-channel stereo
• Speaker output: 2 × 15 W, 30 W total
• Wi-Fi: Dual-band Wi-Fi 6
• Wi-Fi modes: Station and access point
• Bluetooth: Bluetooth 5.2
• HDMI inputs: 2 × HDMI 2.0, up to 4K at 60 Hz
• USB: 1 × USB 3.2 Gen 1 Type-A, 2 × USB 2.0 Type-A, 1 × Micro USB 2.0
• Front USB: 1 × USB 2.0
• Type-C: 1 × Type-C with USB 2.0 device support and 5 W charging
• Network: 1 × RJ-45 Ethernet
• Audio output: 1 × 3.5 mm line-out
• Touch interface: 1 × touch port
• Serial interface: 1 × DB9 male RS-232 connector
• Power supply: 100 to 240 VAC, 50/60 Hz
• Typical power consumption: 141.5 W
• Maximum power consumption: 270 W
• Operating temperature: 0°C to +40°C
• Storage temperature: -20°C to +60°C
• Operating humidity: 10% to 90% RH, non-condensing
• Storage humidity: 10% to 90% RH, non-condensing
• Construction: Metal casing
• Protective glass: 3.2 mm anti-dazzle tempered glass
• Mounting: Suitable for professional wall or mobile stand installation with compatible mounting accessories
• Applications: Classrooms, training rooms, boardrooms, conference rooms, meeting rooms, corporate offices, universities, presentation spaces, and collaborative work environments