Dahua LPH65-ST420-S3 65-inch Interactive Whiteboard

Name: Dahua LPH65-ST420-S3 65-inch Interactive Whiteboard
Brand: Dahua
SKU: dahua-lph65-st420-s3
Availability: InStock

Overview

The Dahua LPH65-ST420-S3 is a 65-inch 4K interactive whiteboard for classrooms and meeting rooms, built on Android 14 with 8 GB RAM and 32 GB storage. Infrared touch supports 21 touch points on Android and 40 on Windows, with finger or stylus input. Two 20 W speakers, Wi-Fi 6 and a rear OPS slot suit schools and offices in Qatar needing one panel for teaching and presenting.

What the LPH65-ST420-S3 is built to do

The Dahua LPH65-ST420-S3 pairs a 65-inch 4K display with an onboard Android 14 system, so teachers and presenters can write, annotate, open files and run apps without a separate computer. The 3840 × 2160 panel uses DLED backlighting, a 16:9 aspect ratio and 10-bit colour, giving 1.07 billion displayable colours. Typical brightness is 400 cd/m², and the 178° viewing angle keeps content visible to students seated at the sides of the room.

Under the glass sit a quad-core A55 processor running at 1.9 GHz, 8 GB of RAM and 32 GB of storage. The panel has a rated lifespan of 50,000 hours, which matters for a board that runs through long school days and extended meetings.

Touch, writing and sharing

Touch uses infrared sensing with a zero air gap attachment. It accepts finger and stylus input, with a 2 mm valid touch distance, 3 mm touch height and ±1 mm accuracy. Touch supports 21 points on Android and 40 points on Windows. The front is 4 mm anti-dazzle tempered glass with a surface hardness of at least 9H. The board includes AI recognition of drawings, and QR-code file sharing lets a participant send a file to the board from a phone without a cable.

Connectivity for lessons and meetings

The front carries a USB-C port that accepts DisplayPort input at 4K 60 fps, provides USB 3.0 host and USB 2.0 device functions and delivers 65 W power, and it also supports wired network sharing. Alongside it are an HDMI input, two USB 3.2 Gen1 Type-A ports, a USB touch port and a 3.5 mm microphone input. The rear adds two HDMI inputs and an HDMI output at 4K 60 Hz, a VGA input, three USB touch ports, RS-232 on a DB9 port, two RJ-45 ports and an OPS slot.

Wireless connectivity covers Wi-Fi 6 on 2.4 GHz and 5 GHz, Bluetooth and NFC card swiping. The board can run a hotspot and Wi-Fi at the same time.

Where it fits in Qatar

In a private school classroom in Al Wakrah, or an Arabic-curriculum classroom in Doha, the 65-inch size suits a room where students sit relatively close to the board. A training room at a Doha training centre can use the Android system for slide decks and video, with a laptop connected through USB-C. A Sunday-to-Thursday team meeting in a West Bay office can connect a laptop over HDMI and share a handout by QR code.

Summer temperatures in Qatar push outdoor readings above 45 °C, so the room must be air-conditioned. The operating range is 0 °C to +40 °C, so avoid placing the board where direct sun from a window reaches the screen.

What to plan before you order

Wall mounting: the board weighs 36.5 kg net and 47 kg gross, so it needs a sound wall and two people to lift it.
Mounting holes measure 500 mm × 400 mm, and a wall mount bracket comes already installed on the board.
Dimensions are 1,485.2 mm × 121.3 mm × 924.5 mm, so check wall space and clearances first.
Power is rated 100–240 VAC, 50/60 Hz, with typical consumption of 120 W and a maximum of 215 W.
The box includes a power cord, two passive stylus pens, an HDMI cable, a remote control and a quick start guide.

Book a free site survey before installation so the team can check wall construction, power points and cable routes. SmartRooms Qatar supplies and delivers to all eight municipalities of Qatar, provides professional installation, and accepts purchase orders (LPOs) and government tenders, including Monaqasat. Request a quote with your room sizes and quantities, and our team will reply with a quotation, usually within one working day.

Highlights

65-inch 4K display at 3840 × 2160 with 400 cd/m² typical brightness
Android 14 with quad-core A55 processor at 1.9 GHz
8 GB RAM and 32 GB storage for onboard apps and files
Infrared touch: 21 points on Android, 40 on Windows
Two 20 W speakers, Wi-Fi 6, Bluetooth and NFC card swiping
OPS slot, RS-232 and two RJ-45 ports for integration

Classroom fit

At 65″ the farthest student should sit within about 4.9 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

68 specifications · Source: manufacturer · checked Oct 2026

Built-in System6

Operating System: Android 14
CPU: Quad-core A55
CPU Frequency: 1.9 GHz
GPU: ARM Mali-G52 MP2 (2EE)
RAM: 8 GB
ROM: 32 GB

LCD Panel11

Panel Dimensions: 65 inch
Backlight: DLED
Aspect Ratio: 16:9
Brightness: 400 cd/m² (typ.)
Static Contrast: VA: 4000; IPS: 1200
Resolution: 3840 (H) × 2160 (V)
Viewing Angle: 178° (H); 178° (V)
Lifespan: 50,000 hrs
Display Color: 1.07 Billion colors (10 Bit)
Response Time: 8 ms (typ.)
Refresh Rate: 60 Hz

Device Ports15

Light Sensor: Yes
Front Button: 8 buttons: Whiteboard, volume, curtain, touch lock, signal source, navigation bar, homepage, power supply
Front Ports: 1 × Type -C 1 × HDMI IN 1 × USB Touch 2 × USB 3.2 Gen1 Type-A 1 × 3.5 mm Mic in 1 × Type-C (DP IN (4K@60 fps) + USB 3.0 Host+USB 2.0 device (touch) + PD 65 W); supports wired network sharing
Rear Port: 1 × Type -C 2 × HDMI IN (4K@60 Hz) 1 × VGA IN 1 × HDMI OUT (4K@60 Hz) 3 × USB Touch 2 × USB3.2 Gen1 Type-A Audio In: 1 × 3.5 mm Line In Audio Out: 1 × SPDIF and 1 × 3.5 mm Line out RS-232: 1 × DB9 port Micro: 1 × USB 2 × RJ-45 1 × OPS slot
Wi-Fi: Yes
Wi-Fi Standard: 802.11b/g/n/a/ac/ax
Wi-Fi Frequency Range: 2.4 GHz/5 GHz
MAX Power Transmission (Wi-Fi): CE EIRP: ≤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: EDR, BT2.1/4.2/5.2/5.3
Bluetooth Frequency Range: 2400–2483.5 MHz
MAX Power Transmission (Bluetooth): CE EIRP: ≤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

Function3

IR Receiver: 1
Card Swiping with NFC: Yes
Wireless Access Point: Wi-Fi 6, 2.4 GHz/5 GHz, supports 802.11 a/b/g/n/ac/ax₩WIFI 5, 2.4 GHz/5 GHz; Supports enabling Hotsport and WIFi at the same time

Touchscreen12

Response Time: ＜10 ms
Touch Technology: Infrared
Attachment Method: Zero Air Gap
Touch Points: 21 points for Android, and 40 points for Windows
Touch Accuracy: ±1 mm (0.04")
Valid Touch: 2 mm (0.08")
Touch Height: 3 mm (0.12")
Writing Mode: Finger and stylus pen
Communication Mode: USB
Anti-light Interference: Anti-dazzle
Surface Hardness: ≥9 H
Touch Resolution: 32,767 × 32,767

Speaker2

Built-in Speaker: 2 × full-frequency speaker
Power: 2.0 sound channel, front-end: 2 × 15 W₩2.0 sound channel, front-end: 2 × 20 W

General18

Power Supply: 100–240 VAC, 50/60 Hz
Power Consumption: 65-inch: 120 W (typ.); 215 W (max, without OPS and Quicker Changer）
Standby Power Consumption: ≤0.5 W
Operating Temperature: 0 °C to +40 °C (+32 °F to +104 °F)
Storage Temperature: –10 °C to +50 °C (+14 °F to +122 °F)
Operating Humidity: 10%–90% (RH)
Storage Humidity: 10%–90% (RH)
Product Material: Metal
Glass: 4 mm anti-dazzle tempered glass
Casing Color (Frame/Rear): Black frame for left and right, silver frame for top and bottom and black frame for back
Product Dimensions: 1,485.2 mm × 121.3 mm × 924.5 mm (58.47" × 4.48" × 36.40") (L × W × H)
Frame Size: Top frame: 27 mm (1.06"); Left and right frame: 16.5 mm (0.65"); Bottom frame: 68 mm (2.68")
Packaging Dimensions: 1,580.0 mm × 200.0 mm × 1030.0 mm (62.20" × 7.87" × 40.55") (L × W × H)
Net Weight: 36.5 kg (80.47 lb)
Gross Weight: 47 kg (103.62 lb)
Holes Distance: 500 mm × 400 mm (19.69" × 15.75")
Installation: Wall mount or mobile bracket
Packing List: 1 × Smart interactive whiteboard; 1 × Power cord; 2 × Passive stylus pen; 1 × HDMI cabe; 1 × Quick start guide; 1 × Wall mount bracket (already installed on the whiteboard); 1 × Accessory package; 1 × Remote control; 1 × Legal and Regulatory Information

Certification1

Certifications: CE

Downloads

8 files from the manufacturer

PDF Datasheets LPH65-ST420-S3_S3_datasheet_20240918.pdf 2.9 MB PDF Manuals & guides Dahua Smart Interactive Whiteboard_Quick Start Guide_V1.0.1.pdf 1.9 MB PDF Manuals & guides Dahua Smart Interactive Whiteboard_User's Manual_V1.0.2.pdf 8.2 MB PDF Manuals & guides LPH65-ST420-S3_INSTALLATION_METHOD_EN.pdf 50 KB PDF Drawings & CAD LPH65-ST420-S3_DIMENSIONS.pdf 1.2 MB PDF Drawings & CAD LPH65-ST420-S3_PORT.pdf 148 KB 2601 Software & firmware · Opens on manufacturer site DHI_DahuaDeepHubLiteBasicS3_MultiLang_V3.012.0000000.1.R.260119 DOCX Other documents LPH65-ST420-S3_A&E_20260901215529.docx 39 KB

Questions about LPH65-ST420-S3

What is the Dahua LPH65-ST420-S3 used for?

It is a 65-inch interactive whiteboard for classrooms, training rooms and smaller meeting rooms. Teachers and presenters can write, annotate and open files directly on a 4K panel running Android 14, without a separate computer. It suits buyers in Qatar who want one display for teaching and presenting, and its two 20 W speakers handle everyday lessons and internal briefings well.

Does the board need a separate computer to run lessons?

No. The panel has an onboard Android 14 system with a quad-core A55 processor at 1.9 GHz, 8 GB RAM and 32 GB storage, so common apps and files can run on the board itself. For Windows software, connect a computer through HDMI or USB-C, or fit a compatible computer module into the rear OPS slot. Touch works with both sources, with 21 points on Android and 40 on Windows.

How many touch points does it support and how does touch work?

Touch is infrared with a zero air gap attachment. It supports 21 touch points on Android and 40 points on Windows, and accepts finger or stylus input. Valid touch starts at 2 mm, touch height is 3 mm and touch accuracy is ±1 mm. The 4 mm anti-dazzle tempered glass front is designed to reduce glare from bright ceiling lights.

Is 65 inches the right size for a classroom or meeting room in Qatar?

A 65-inch panel suits smaller classrooms, tutorial rooms and meeting rooms where viewers sit relatively close to the screen. For a large lecture hall or boardroom with a longer viewing distance, a larger panel may be a better fit. Ask the SmartRooms Qatar team to review your room layout and seating before you order.

Can it work in a classroom in Al Wakrah or Doha during the summer heat?

The panel has an operating temperature range of 0 °C to +40 °C and operating humidity of 10% to 90% RH. Outdoor temperatures in Qatar in summer can exceed 45 °C, so the room must be air-conditioned, and the board should not sit where direct sunlight from a window reaches the screen. Confirm the installation environment with the SmartRooms Qatar team before mounting.

Will it connect to my laptop and to Wi-Fi?

Yes. Connect a laptop over HDMI or USB-C; the front USB-C port accepts DisplayPort input at 4K 60 fps and delivers 65 W power. For wireless use, Wi-Fi 6 runs on 2.4 GHz and 5 GHz and supports 802.11 a/b/g/n/ac/ax. The board can run a hotspot and Wi-Fi at the same time, and files can be shared by scanning a QR code.

What ports are on the back of the board?

The rear panel has two HDMI inputs and one HDMI output, all at 4K 60 Hz, plus a VGA input, three USB touch ports, two USB 3.2 Gen1 Type-A ports, a USB-C port, two RJ-45 ports and an OPS slot. Audio connections include a 3.5 mm line in, SPDIF and a 3.5 mm line out. RS-232 on a DB9 port helps with integration into external control systems.

Can I use the speakers for a large room or lecture hall?

The built-in speakers are 2 × 20 W, which suits a classroom or meeting room. For a larger room, take audio from the 3.5 mm line out or the SPDIF output on the rear panel to an external amplifier and speakers. Confirm the audio setup for your room during the free site survey so the sound level is planned before installation.

Can it be wall-mounted, and how much does it weigh?

Yes. The board can be installed on a wall or a mobile bracket, and a wall mount bracket is already installed on the unit. It weighs 36.5 kg net and 47 kg gross, and the mounting holes measure 500 mm × 400 mm. Overall dimensions are 1,485.2 mm × 121.3 mm × 924.5 mm. SmartRooms Qatar offers a free site survey to check the wall before professional installation.

How much power does it use, and will it run on Qatar mains?

The power supply is rated 100 to 240 VAC at 50/60 Hz, which covers Qatar's 240 V, 50 Hz mains supply. Typical consumption is 120 W and maximum is 215 W, with standby at 0.5 W or less. A power cord is included. Ask the SmartRooms Qatar team to confirm that the supplied cord suits BS 1363 Type G sockets before installation.

Is there a built-in camera for video conferencing?

No built-in camera is listed in the specification, so do not assume one is included. The board has a 3.5 mm microphone input at the front and a 3.5 mm line in at the rear, and it accepts a laptop or video conferencing system through HDMI or USB-C. If meetings with teams abroad need a camera, ask the SmartRooms Qatar team to confirm the best setup.

We are buying several units for a school. How do we order?

Send your quantities, room list and purchase order (LPO) requirements with your enquiry. SmartRooms Qatar supplies and delivers to all eight municipalities of Qatar, offers professional installation, and usually issues quotations within one working day. Payment is accepted by bank transfer, cheque or purchase order. Request a quote for the LPH65-ST420-S3 with your quantities so we can plan delivery and site surveys.