LPH75-ST480-U-S2
Dahua LPH75-ST480-U-S2 75-inch Smart Interactive Whiteboard
- Screen size
- 75 inch
- Resolution
- 3840 (H) × 2160 (V)
- Touch
- Infrared
- System
- Android 15
The Dahua LPH75-ST480-U-S2 is a 75-inch smart interactive whiteboard from the ST480 Education Series. It pairs a 4K panel with a 64-point infrared touchscreen, runs Android 15 with 8 GB RAM, and includes a 16-array microphone and 2 × 10 W + 2 × 20 W speakers. Suited to classrooms and training rooms in Doha, Al Rayyan and Lusail that need one self-contained teaching display.
What the LPH75-ST480-U-S2 does
The LPH75-ST480-U-S2 is a 75-inch interactive whiteboard from Dahua's ST480 Education Series. It combines a 3840 × 2160 DLED panel with an infrared touch layer and an on-board Android 15 system, so a teacher can annotate, open lesson files and run apps from the glass itself. The panel is rated at 400 cd/m² typical brightness and 1500:1 typical static contrast, with an 8 ms response time and a lifespan of at least 50,000 hours.
Touch, writing and display quality
The touchscreen supports 64 touch points on both Android and Windows, with a response time of 1.67 ms or less and anti-dazzle tempered glass rated at 9H or harder. Two styluses come in the box, and the pen attaches magnetically to the frame. Palm erasing and palm rejection are listed, so a presenter can rest a hand on the surface while writing. The 10-bit panel shows 1.07 billion colours across a 90% NTSC gamut, which helps diagrams and maps keep their detail.
Connectivity, sound and power
The front panel offers one HDMI input, two USB 3.2 Gen1 Type-A ports and a USB Type-C input rated for 100 W fast charge, data and LAN, which suits bring-your-own-device sessions. The rear panel adds three 4K HDMI inputs and one 4K HDMI output, a DisplayPort input, VGA, RS232, 10/100/1000 Mbps RJ45 ports and a microSD slot expandable to 512 GB. Wi-Fi 6 and Bluetooth 5.4 are built in, and the 16-array microphone picks up voices up to 12 metres away. The power supply is rated 100–240 VAC at 50/60 Hz, which covers Qatar's 240 V supply. Typical draw is 110 W, rising to 330 W at maximum.
Where it fits in Qatar
- Primary and secondary classrooms in Al Wakrah or Al Rayyan, where one large display can replace a projector and screen.
- Training rooms at Education City, where lecturers connect over Wi-Fi 6 and use the microphone to reach the back of the room.
- Boardrooms in West Bay or Msheireb, where the HDMI output passes the picture on to a second 4K display at 60 Hz.
What to plan before installation
The board measures 1,668.7 mm wide, 1,038.5 mm high and 116.2 mm thick, and weighs 44.6 kg net or 56.8 kg packed, so a lifting plan and a structurally sound wall are essential. The wall-mount holes are 600 mm by 400 mm, and the box includes a wall-mount bracket and screw pack. The data also lists a mobile bracket as an installation option. The operating range is 0 °C to +40 °C at 10–90% humidity, non-condensing. Qatar summer temperatures can exceed 45 °C, so the board belongs in air-conditioned rooms, not open halls or outdoor areas. A free site survey from SmartRooms Qatar checks wall strength, cable routes and bracket type before delivery.
Request a quote
Send your room sizes, wall types and quantity, and SmartRooms Qatar will return a quotation, usually within one working day. Purchase orders (LPOs) and government tenders are welcome, and we supply and deliver to all eight municipalities of Qatar. Request a quote today to get the right mounting plan for your rooms.
Highlights
- 75-inch 4K (3840 × 2160) DLED display, 16:9 aspect ratio
- 64-point infrared touch with 1.67 ms or faster response
- Android 15 with 8 GB RAM and 128 GB storage
- 16-array microphone with 12 m pickup and echo cancellation
- Wi-Fi 6, Bluetooth 5.4 and NFC quick unlock
- Operating range 0 °C to +40 °C; 100–240 VAC, 50/60 Hz power
Classroom fit
At 75″ the farthest student should sit within about 5.6 m (6× the screen height).
Estimated timeline
Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.
Specifications
Built-in System6
- Operating System
- Android 15
- CPU
- Quad-core A76 + Quad-core A55
- CPU Frequency
- 2.4 GHz
- GPU
- Mali-G610 MC4
- RAM
- 8 GB
- ROM
- 128 GB
LCD Panel12
- Screen Size
- 75 inch
- Backlight
- DLED
- Aspect Ratio
- 16:9
- Brightness
- 400 cd/m² (typ.)
- Resolution
- 3840 (H) × 2160 (V)
- Viewing Angle
- 178° (H)/178° (V)
- Lifespan
- ≥50,000 hrs
- Refresh Rate
- 60 Hz
- Display Color
- 1.07 Billion (10 bits)
- Color Gamut
- 90% NTSC
- Static Contrast Ratio
- 1500:1 (typ.)
- Response Time
- 8 ms
Device Ports16
- Light Sensor
- 1
- Front Button
- 8 buttons: custom, volume down, volume up, curtain control, touch lock, input source selection, home and power
- Front Ports
- 2 × USB 3.2 Gen1 Type-A , 1 × HDMI IN, 1 × USB Type-C IN (100 W fast charge, data transmission, local area network, BYOD), 1 × TOUCH USB 2.0 Type-B
- Rear Port
- 3 × HDMI IN (4K@60 Hz) , 1 × HDMI OUT (4K@60 Hz) , 1 × DP IN (4K@60 Hz), 1 × USB 2.0 Type-A Android, 2 × USB 3.2 Gen1 Type-A Follow, 1 × USB Type-C IN (15 W charge, data transmission), 1 × USB Type-C OUT (4K@60 Hz), 3 × TOUCH USB 2.0 Type-B, 1 × VGA IN , 1 × VGA AUDIO IN (3.5 mm port), 1 × LINE IN (3.5 mm port), 1 × LINE OUT (3.5 mm port), 1 × SPDIF OUT, 1 × RS232, 1 × microSD card slot, 1 × RJ45 IN (10/100/1000 Mbps), 1 × RJ45 OUT (10/100/1000 Mbps)
- Wi-Fi
- Wi-Fi 6, 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, BT5.4
- 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
- TF Card Slot
- 1 microSD card slot, expandable up to 512GB
Function3
- NFC
- Supports quick unlock via NFC.
- Wireless Access Point
- Wi-Fi 6, 2.4 GHz and 5 GHz dual band, 802.11b/g/n/a/ac/ax
- IR Receiver
- 1
Touchscreen11
- Response Time
- ≤1.67 ms
- Touch Technology
- Infrared
- Attachment Method
- Zero Air Gap
- Touch Points
- Android: 64 pionts, Windows: 64 pionts
- Valid Touch
- 1.5 mm (0.06") (over 90% touch area)
- Writing Mode
- Finger + Pen (attaches magnetically)
- Touch Height
- ≤0.99 mm (average)
- Anti-light Interference
- Anti-dazzle tempered glass
- Surface Hardness
- ≥9H
- Touch Resolution
- 32768 × 32768
- Other Functions
- Pen Writing, Finger Dragging, Dual-Color Pen, Multi-Touch, Palm Erasing, and Palm Rejection.
Speaker3
- Frequency
- 90 Hz–20 kHz
- Power
- 2 × 10 W + 2 × 20 W
- Built-in Speaker
- 4 (CH2.2)
Microphone6
- Microphone
- 16 arrays
- Pick-up Distance
- 0 m–12 m (0 ft–39.37 ft)
- AGC
- Yes
- Echo Cancellation
- Yes
- Polar Pattern
- Omnidirectional
- Intelligent Noise Filtering
- YES
General20
- Power Supply
- 100–240 VAC, 50/60 Hz
- Power Consumption
- 110 W (basic), 330 W (max)
- Standby Power Consumption
- ≤0.5 W
- 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-glare tempered glass
- Casing Color (Frame/Rear)
- Black on the left and right, Lunar Rock Gray on the top and bottom.
- Product Dimensions
- 1,668.7 mm × 116.2 mm × 1038.5 mm (65.7" × 4.57" × 40.89") (L × W × H)
- Frame Size
- Top border: 35.9 mm (1.41"), left and right borders: 17.5 mm (0.69"), bottom border: 40.7mm (1.6")
- Packaging Dimensions
- 1,875 mm × 227 mm × 1,177 mm (73.82" × 8.94" × 46.34") (L × W × H)
- Operating System of External Module
- Windows 7/8/10/11
- Net Weight
- 44.6 kg (98.33 lb)
- Gross Weight
- 56.8 kg (125.22 lb)
- Holes Distance
- 600 mm × 400 mm (23.62" × 15.75")
- Installation
- Wall mount or mobile bracket
- Packing List
- 1 × Smart interactive whiteboard, 1 × Power cord, 2 × Stylus pen, 1 × Quick start guide, 1 × Wall mount bracket, 1 × Remote control, 1 × Legal and regulatory information, 1 × Wall-mount screw pack, 1 × Wireless plug-in module
- Glass Thickness
- 3.2 mm