Dahua Technology DHI-LPH75-ST420 interactive whiteboard 190.5 cm (75") 3840 x 2160 pixels Touchscreen Black HDMI

Manufacturer: DAHUA | Model: DHI-LPH75-ST420 | Product ID: 2236
£1116.14 (inc. VAT)
Availability: 0 in stock

Product Technical Specification

Display
Display diagonal75
Display brightness400
Display number of colours1.07 billion colours
Display resolution3840 x 2160
HD type4K Ultra HD
LED backlighting typeDirect-LED
Native aspect ratio16:9
Contrast ratio (typical)1200:1
Response time8
Maximum refresh rate60
TouchscreenYes
Touch technologyMulti-touch
Touchscreen typeInfrared
Number of simultaneous touchpoints40
Touch resolution32767 x 32767
Touch system response time10
Touch object size (min)2
Viewing angle, horizontal178
Viewing angle, vertical178
Screen glass thickness4
Surface materialTempered glass
Hardness8H
Accuracy touch1
Computer system
Operating system installedAndroid
Operating system version11
Built-in processorYes
Processor frequency1.9
Processor cores4
Maximum internal memory64
User memory64
RAM capacity8
Audio
Built-in speaker(s)Yes
Number of built-in speakers2
Speaker power15
Projector
Built-in projectorNo
Network
Wi-FiYes
Top Wi-Fi standardWi-Fi 5 (802.11ac)
Wi-Fi standards802.11b,802.11g,Wi-Fi 4 (802.11n),Wi-Fi 5 (802.11ac)
BluetoothYes
Bluetooth version5.2
Ethernet LANYes
Ports & interfaces
InterfaceHDMI
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
Interface module USB 3.2 Gen 1 (3.1 Gen 1) Type-B ports quantity4
USB connector typeMicro-USB
HDMI ports quantity4
USB Type-C ports quantity2
USB Type-C DisplayPort Alternate ModeYes
HDMI output ports quantity1
USB Power Delivery (USB PD)Yes
Ethernet LAN (RJ-45) ports2
VGA (D-Sub) ports quantity1
Line-inYes
Line-outYes
S/PDIF out portYes
Microphone connectivity3.5 mm
Audio output1
RS-232 ports1
Ergonomics
Product colourBlack
VESA mountingYes
Panel mounting interface600 x 400
Wall mountableYes
CertificationCE, CB, Energy Star, ERP, RoHS, WEEE
Performance
Ambient light sensorYes
Power
Power consumption (max)300
Power consumption (typical)150
AC input voltage100 - 240
AC input frequency50 - 60
System requirements
Windows operating systems supportedYes
Mobile operating systems supportedAndroid
Operational conditions
Operating temperature (T-T)0 - 40
Operating relative humidity (H-H)10 - 90
Storage temperature (T-T)-10 - 50
Storage relative humidity (H-H)10 - 90
Weight & dimensions
Width1707.5
Depth930
Height1050
Weight52000
Packaging data
Package width1800
Package depth200
Package height1165
Package weight6500
Quantity per pack1
Packaging content
Cables includedHDMI,Power
Remote control includedYes
Mounting brackets includedYes
Quick start guideYes
Stylus includedYes
Stylus pen typePassive
Sustainability
Sustainability complianceYes
Sustainability certificatesENERGY STAR,ErP
Compliance certificatesCB,CE,RoHS,WEEE

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Sun 07th Dec 2025 to Wed 10th Dec 2025
Fast & Tracked by Courier
£6.95
Fast & Tracked by Courier

Fast & Tracked by Courier (UK)

Estimated delivery date: Sat 06th Dec 2025 to Mon 08th Dec 2025
View all Delivery Options & International Rates
The Lite Series are highly competitive digital whiteboards that also offersthebasic AI features of the Pro Series, such as Handwriting Recognition(*only ST420). For education or business scenarios, the lite series integrates practical functions that make writing, browsing the web, operating APPs, file management, remote meetings, etc.,easier than ever.

Educational Software Compatibility
Effectively assists teachers in each teaching workflow, including easy lesson preparation, interesting class organization, and timely performance assessments. It encourages students to participate fully in class activities such as games and quizzes and inspires them to explore.

Easy Screen Sharing
One-tap wireless screen sharing allows users to present and explore ideas across devices in real-time. It supports up to 9 split screens to encourage participation. The 4K UHD display brings a super clear visual experience.
Display
Display diagonal75
Display brightness400
Display number of colours1.07 billion colours
Display resolution3840 x 2160
HD type4K Ultra HD
LED backlighting typeDirect-LED
Native aspect ratio16:9
Contrast ratio (typical)1200:1
Response time8
Maximum refresh rate60
TouchscreenYes
Touch technologyMulti-touch
Touchscreen typeInfrared
Number of simultaneous touchpoints40
Touch resolution32767 x 32767
Touch system response time10
Touch object size (min)2
Viewing angle, horizontal178
Viewing angle, vertical178
Screen glass thickness4
Surface materialTempered glass
Hardness8H
Accuracy touch1
Computer system
Operating system installedAndroid
Operating system version11
Built-in processorYes
Processor frequency1.9
Processor cores4
Maximum internal memory64
User memory64
RAM capacity8
Audio
Built-in speaker(s)Yes
Number of built-in speakers2
Speaker power15
Projector
Built-in projectorNo
Network
Wi-FiYes
Top Wi-Fi standardWi-Fi 5 (802.11ac)
Wi-Fi standards802.11b,802.11g,Wi-Fi 4 (802.11n),Wi-Fi 5 (802.11ac)
BluetoothYes
Bluetooth version5.2
Ethernet LANYes
Ports & interfaces
InterfaceHDMI
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
Interface module USB 3.2 Gen 1 (3.1 Gen 1) Type-B ports quantity4
USB connector typeMicro-USB
HDMI ports quantity4
USB Type-C ports quantity2
USB Type-C DisplayPort Alternate ModeYes
HDMI output ports quantity1
USB Power Delivery (USB PD)Yes
Ethernet LAN (RJ-45) ports2
VGA (D-Sub) ports quantity1
Line-inYes
Line-outYes
S/PDIF out portYes
Microphone connectivity3.5 mm
Audio output1
RS-232 ports1
Ergonomics
Product colourBlack
VESA mountingYes
Panel mounting interface600 x 400
Wall mountableYes
CertificationCE, CB, Energy Star, ERP, RoHS, WEEE
Performance
Ambient light sensorYes
Power
Power consumption (max)300
Power consumption (typical)150
AC input voltage100 - 240
AC input frequency50 - 60
System requirements
Windows operating systems supportedYes
Mobile operating systems supportedAndroid
Operational conditions
Operating temperature (T-T)0 - 40
Operating relative humidity (H-H)10 - 90
Storage temperature (T-T)-10 - 50
Storage relative humidity (H-H)10 - 90
Weight & dimensions
Width1707.5
Depth930
Height1050
Weight52000
Packaging data
Package width1800
Package depth200
Package height1165
Package weight6500
Quantity per pack1
Packaging content
Cables includedHDMI,Power
Remote control includedYes
Mounting brackets includedYes
Quick start guideYes
Stylus includedYes
Stylus pen typePassive
Sustainability
Sustainability complianceYes
Sustainability certificatesENERGY STAR,ErP
Compliance certificatesCB,CE,RoHS,WEEE

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a very flexible and hassle free returns policy. If for whatever reason you are not happy with the item purchased you can return it to us within 12months for a refund (for unused and unopened items) or within 30 days on opened and used items for a refund. This applies to items purchased direct through Buykingston  only.

Our 30 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items opened and used and that are returned in a resellable condition.

Our 365 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items that remain sealed and unused.

Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;

- Headphones
- Earphones
- Custom made and designed products such as flash memory products with custom logo’s on them. E,g USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on non tracked items.
On unopened items 365 days.

How do i go about returning my order?
Please contact us via our contact page with your order number where we will present you with an RMA number and returns label.

Do i need to contact you before returning my order?
Yes, to obtain an RMA number.

Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365 day returns. Of course for faulty items we realise you may no longer have the packaging.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer direct for assistance.

Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.