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Dahua LPH75-MC420-C-S2

75 inch Smart interactive whiteboard

Built-in Deephub Meeting software that offers online conferences and customizable support for real-time collaboration.
Displays in 4K Ultra HD and uses 4K UI.
With its 2 built-in mid-high frequency speakers, the device supports 2.0-channel audio output, and its total power is 40 W.
Produces vibrant visuals through its NTSC High Gamut Screen that offers wide color coverage up to 90% and its advanced technology that produces accurate color reproduction of ΔE≤1.5.
Features split screen, and performs screen sharing between the whiteboard and phones, computers, tablets and more devices.
Microsoft Office and other related software can be installed, and it can play audio and video files in various formats.
Offers a smooth writing experience through handwriting recognition, pen writing, its fast writing response speed, and pen pressure recognition.

Category: Uncategorized Brand: Dahua

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Specification	Details
Built-in System	Operating System
	Android 14
CPU	Quad-core A73 + Quad-core A53
CPU Frequency	2.2 GHz + 2.0 GHz
GPU	ARM Mali-G52 MP8 (8EE)
RAM	8 GB
ROM	64 GB
Card Swiping with NFC	Yes, supports binding up to 10 cards.
NFC	Supports quick unlock via NFC.
Function
Operating System of External Module	Windows 7/8/10/11; Android
Wi-Fi Hotspot	Dual-band 2.4 G/5 G; Supports enabling hotspot and Wi-Fi at the same time
LCD Panel
Screen Size	75 inch
Backlight	DLED
Aspect Ratio	16:9
Brightness	400 cd/m² (typ.)
Resolution	3840 (H) × 2160 (V)
Viewing Angle	H: 178°; V: 178°
Lifespan	≥50, 000 hrs
Display Color	90% NTSC (typ.)
Refresh Rate	60 Hz
Static Contrast Ratio	1200 (typ.)
Response Time	8 ms (typ.)
Camera
Camera	Android: Photo: 52 MP; Video: 8 MP Windows: Photo: 8 MP; Video: 8 MP
Auto Control	Auto white balance
Distortion	–8.6%
Max. Resolution	Photo: 9632 (H) × 5418 (V); Video: 3840 (H) × 2160 (V)
Field of View	D: 99°; H: 87°; V: 49°
Face Detection	Yes
Digital Zoom	Yes，supports up to 9x digital zoom.
Device Ports
Light Sensor	1
Front Button	1 × power button
Front Ports	1 × TYPE-C, 1 × HDMI IN, 2 × USB 3.2 Gen1
Network Port	2 × RJ-45
Wi-Fi	Yes, 1 × Station, 1 × AP
Wi-Fi Standard	Station: 802.11b/g/n/a/ac/ax AP: 802.11b/g/n/a/ac/ax
Wi-Fi Frequency Range	2400–2483.5 MHz, 5150–5350 MHz, 5470–5725 MHz, 5725–5850 MHz
MAX Power Transmission (Wi-Fi)	≤20 dBm@2400–2483.5 MHz; ≤23 dBm@5150–5250 MHz; ≤20 dBm@5250–5350 MHz; ≤27 dBm@5470–5725 MHz; ≤14 dBm@5725–5850 MHz
Bluetooth	Yes
Bluetooth Standard	BR/EDR/BLE, BT5.2
Bluetooth Frequency Range	2400–2483.5 MHz
MAX Power Transmission (Bluetooth)	≤20 dBm@2400–2483.5 MHz
RFID Modulation Method	ASK
RFID Frequency Range	13.56 MHz
MAX Power Transmission (RFID)	42 dBuA/m @10 m
USB	4 × USB 3.2 Gen1 Type-A; 1 × USB 2.0 Type-A; 1 × Micro USB 2.0
RS-232	1 × DB9 male connector
Video Input	2 × HDMI 2.0 (4K@60Hz)
Video Output	1 × HDMI 2.0 (4K@60Hz)
Audio Output	1 × 3.5 mm Line Out port; 1 × SPDIF port
Others	2 × Touch port
IrDA	1
Microphone	8 arrays
Type-C Port	1 × Type-C IN (DP IN (4K@60 fps) + USB 3.2 Gen1 host+ USB 2.0 device (touch) + 5W Charging)
Touchscreen
Response Time	≤3.3 ms
Touch Technology	Infrared
Touch Points	32@Android, 50@windows
Valid Touch	1.5 mm (0.06″) (over 90% touch area)
Writing Mode	Finger + Pen (attaches magnetically)
Anti-light Interference	Anti-dazzle tempered glass
Surface Hardness	≥9H
Touch Resolution	32,767 × 32,767
Number of Multi-user Writing Points	10 points (over 90% touch area)
Speaker
Number of Cavities	2
Frequency	150 Hz–20 kHz
Power	2.0 sound channel, front-end: 2 × 20 W
Built-in Speaker	2
Microphone
Pick-up Distance	Long-range sound pickup: 8 m–12 m (26.25 ft–39.37 ft)
Number of Microphones	8 arrays
AGC	Yes
Echo Cancellation	Yes
Polar Pattern	Omnidirectional
Intelligent Noise Filtering	YES
General
Power Supply	100–240 VAC, 50/60 Hz
Power Consumption	225 W (basic), 326 W (max)
Operating Temperature	0 °C to +40 °C (+32 °F to +104 °F)
Storage Temperature	–20 °C to +60 °C (–4 °F to +140 °F)
Operating Humidity	10%–90% (RH), non-condensing
Storage Humidity	10%–90% (RH), non-condensing
Product Material	Metal casing
Protective Glass	3.2 mm anti-dazzle tempered glass
Casing Color (Frame/Rear)	The left and right sides are black, and the top and bottom are starry gray.
Product Dimensions	1,707.5 mm × 87 mm × 1,067 mm (67.22″ × 3.43″ × 42.01″) (L × W × H)
Frame Size	Top border: 40.9 mm (1.61″), left and right borders: 17.5 mm (0.69″), bottom border: 65.3 mm (2.57″)
Packaging Dimensions	1,875 mm × 227 mm × 1,177 mm (73.82″ × 8.94″ × 46.34″) (L × W × H)
Net Weight	50 kg (110.23 lb)
Gross Weight	71.2 kg (156.97 lb)
Holes Distance	600 mm × 400 mm (23.62″ × 15.75″)
Installation	Wall mount; mobile bracket
Standby Power Consumption	≤0.5 W
Packing List
1 × Smart interactive whiteboard 1 × Wireless plug-in module 1 × Power cord 2 × Stylus pen 1 × Quick start guide 1 × Legal and regulatory information 1 × Wall mount bracket 1 × Wall-mount screw package 1 × Remote control
Glass Thickness	3.2 mm

Overview

Dahua LPH75-MC420-C-S2 – 75″ Smart Interactive Flat Panel

The Dahua LPH75-MC420-C-S2 is a 75-inch 4K interactive flat panel display designed for modern classrooms, conference rooms, and collaborative workspaces. Engineered with high precision touch control, powerful hardware, and advanced smart features, it delivers a smooth and engaging interactive experience for both education and business environments.

Key Features & Benefits

Immersive 4K Display: A 75-inch DLED panel with 3840×2160 resolution provides ultra-clear visuals, vibrant colors, and sharp contrast, ensuring every presentation or lesson is crystal clear.
Powerful Processing: Runs on Android 13 with an octa-core processor, offering fast performance, smooth multitasking, and compatibility with modern interactive applications.
Precision Touch Control: Infrared touch technology with up to 40 touch points allows multiple users to interact simultaneously with ±1 mm accuracy, supporting both finger and stylus input.
Seamless Connectivity: Equipped with a comprehensive range of ports including USB-C, HDMI in/out, VGA, RJ-45, and RS-232. Supports Wi-Fi 6 and Bluetooth 5.x for stable wireless connections.
Wireless Screen Sharing: Enables quick and secure content sharing from laptops, tablets, and smartphones — perfect for interactive lessons, team discussions, and hybrid meetings.
Dual System Support: Compatible with both Android and optional OPS-based Windows modules, providing flexibility for different software ecosystems and user preferences.
Smart Whiteboard & Collaboration Tools: Features intelligent handwriting recognition, split-screen functions, quick file sharing via QR code, and easy annotation tools to enhance engagement.
Built-In Audio & Controls: Integrated dual speakers deliver clear, room-filling sound. Physical shortcut buttons on the front panel offer quick access to common functions like source switch, whiteboard, and volume control.
Durable Build: Constructed with 4 mm anti-glare tempered glass, metal housing, and a long lifespan of up to 50,000 hours. Typical brightness of 400 cd/m² ensures excellent visibility in all lighting conditions.
Energy Efficient: Optimized power consumption and standby modes help reduce energy usage while maintaining consistent performance.

Additional Features

Support AI recognition of text and drawings.
Built-in 8 array microphone and AI 52M camera that supports 9× zoom, produces high-quality visuals and audio communication, and supports auto-framing and voice tracking.
Intelligent pen detection that automatically wakes up the whiteboard for annotations when the pen is lifted.
Seamlessly calls the camera and microphone of the whiteboard through its Type-C IN port and screen projector.
Supports unlocking through NFC.
Includes a full-featured Type-C IN port

Why Choose the LPH75-MC420-C-S2
The Dahua LPH75-MC420-C-S2 combines elegant design, advanced touch technology, and intelligent features to create an immersive, future-ready collaboration solution. Whether in a classroom, training center, or boardroom, it simplifies communication and encourages interactive learning and teamwork.

Ideal For: