4K Nano Smart Blackboard-Nano Smart Blackboard Qtenboard for Classroom

Product Overview:

The Qtenboard nano interactive smart blackboard perfectly combines the traditional chalk writing blackboard with the 4K touch display. 75/85/86/98 inch optional, infrared touch, Android 14 system, support OEM/ODM education customization.

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Release time:2026-09-11

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Product Introduction

Nano Interactive Smart Blackboard-Nano Smart Blackboard for Classroom

Available in various sizes.

75 / 85 / 86 / 98 inches

Resolution

4K Ultra HD

Android system

Android 14

Windows

Optional

Chip solution

9679 / 3576 / V100 / 311D2 / 3588

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Qtenboard Nano Smart Blackboard B8620

The Qtenboard integrated nano smart blackboard seamlessly integrates the traditional chalk writing blackboard with the 4K interactive display screen, bringing all-round digital upgrading to your classroom teaching.

Born for classroom efficiency

Enhance classroom engagement

Let every student integrate into the classroom interaction, stimulate interest in learning and active exploration desire.

Simplify intuitive teaching

intuitive operation interface, regardless of the technical level, the teacher can easily get started.

classroom efficiency drive

Shortcut keys directly to the core teaching function, reduce the operation time, focus on the classroom itself.

Multi-compatible writing experience

Qtenboard exclusive etching AG nano glass

Qtenboard exclusive etching AG nano glass surface, to achieve full surface smooth writing. It supports ordinary chalk, dustless chalk and liquid writing pens, and realizes digital interactive operation while retaining teachers' familiar blackboard writing habits.

Support normal chalk/dustless chalk/liquid whiteboard pen
AG anti-glare treatment, clear visibility of all angles in the classroom
Surface hardness ≥ 7H, scratch resistance and wear resistance
Transmittance ≥ 82%, does not affect the display effect

Brilliant 4K visual performance

Qtenboard Nano Smart Blackboard uses a high color gamut 4K UHD panel, which can present up to 1.07 billion colors. Each teaching graphic and course video can show the whole class real and rich details.

Qtenboard Certified Eye Protection Display

Rhine Eye Care certification, low blue light, no stroboscopic

Our nano smart blackboard is equipped with TÜV Rheinland low blue light and no stroboscopic certification, effectively reducing visual fatigue during long-term classroom use.

Authorized eye protection certification tailored for K12 classrooms. Teachers and students are still comfortable facing the screen for a long time, creating a healthier digital teaching environment for Qtenboard.

Built-in immersive audio and video system

Qtenboard nano smart blackboard has built-in high-definition camera, omnidirectional microphone array and front speaker out of the box, supporting mixed classroom, distance teaching and multi-site interactive courses without additional peripherals.

Immersive Classroom Stereo

2 x 15W front speakers, evenly covering every corner of the large-size classroom.

Whole Classroom Voice Pickup

≥ 4 element microphone array, 8 meters within the teaching range to clearly capture the teacher's voice.

Wide angle built-in camera

48 million pixels, 78 ° diagonal field of view, covering most of the classroom area, reducing the frequency of PTZ adjustment during remote teaching.

Convenient front Type-C interface

1-wire connection, full-function integration

Qtenboard front Type-C interface integrates video, audio, touch, network and power transmission. Support 4K @ 60Hz signal output, up to 65W reverse charging and notebook wired network access, greatly simplifying the connection of classroom peripherals.

4K @ 60Hz HD signal straight out
Maximum 65W reverse fast charge notebook
One line to achieve wired network access
Front design, easy to plug and unplug without bending over

Qtenboard Exclusive EDU Software Ecosystem

Based on the Qtenboard's self-developed EDU OS V3.0, it is deeply optimized for real-world teaching scenarios. The core teaching function shortcut keys help teachers to operate quickly and improve classroom efficiency.

Qtenboard EDU OS V3.0

An operating system built for educational scenarios. Intuitive operation allows teachers of different technical levels to easily carry out vivid interactive courses.

Qtenboard Class 课堂

Qtenboard original teaching toolbox. Rich classroom interaction tools help teachers attract students' attention and achieve better learning results.

Qtenboard Connect wireless screen projection

Qtenboard wireless screen projection solution. The contents of computers and mobile devices are smoothly cast to the large screen, with a maximum of 9 screens cast together and a support for group collaborative learning.

DMS Cloud Remote Device Management

Reduce field maintenance workload

IT administrators can remotely monitor, configure and manage all Qtenboard nano blackboards through Qtenboard self-developed DMS cloud platform without visiting the classroom site.

Remote Bulk Upgrade of System Firmware
Real-time monitoring of equipment running status
Batch distribution of teaching resources and application
Fault warning, active operation and maintenance

Integrated beautiful classroom design

All-metal body · Push-pull type blackboard structure

Qtenboard all-metal nano-smart blackboard combines the traditional push-pull chalk blackboard with the interactive tablet. Simple mechanical structure for the school classroom to bring a unified appearance and practical teaching function.

Student safety optimization:The Qtenboard adopts arc corner transition design to reduce the risk of collision injury and equipment damage in busy classroom environment.

Qtenboard reliable quality assurance

Each class is delivered steadily. Qtenboard Nano Smart Blackboard provides industry-leading 3-year hot replacement warranty, providing solid after-sales protection for the school's digital classroom project.

Technical specifications parameters

The following spec sheet is based on the 75-inch QM-HB75NM Qtenboard Nano Smart Blackboard. For 85/86/98 inch model parameter documentation, please contact the Qtenboard sales team.

Brand	Qtenboard
Optional size	75" / 85" / 86" / 98"
Model	QM-HB75NM / QM-HB85NM / QM-HB86NM / QM-HB98NM

Display parameters

Visible area (mm)	1650.24 × 928.26
Resolution	3840 × 2160,4K UHD
Screen ratio	16:9
Brightness	> 350cd/m² (typical)
Contrast	4000:1
Response time	≤ 8ms (typical)
Pixel pitch (mm)	0.4298 × 0.4298
Refresh rate	60Hz
Panel life	> 30,000 hours
color depth	> 1.07 billion color
HDR	Support

Side Nano Blackboard Panel

Material	Nano honeycomb blackboard panel, support magnetic attraction
Panel color	Matte black
Quantity	Left × 1, Right × 1
Physical Dimensions	Custom matching with main display size
Chalk holder	School Level Security Compliance Design

Touch performance

Touch technology	Infrared/Capacitive (configurable)
Cover glass	4mm thick tempered glass
Glass surface process	Qtenboard exclusive etching AG process
Touch Input	Finger touch/capacitive pen
Maximum number of touch points	20-50 points
interpolation resolution	32768(W) × 32768(D)
Touch accuracy	≤2mm
Touch Response	≤ 6ms
Light transmittance	≥82%
Haze value	≤2.5
Surface hardness	≥ 7H
Surface treatment	Anti-glare, anti-fingerprint
Touch Activation Diameter	Single point ≥ 1.6mm/multipoint ≥ 3mm

System Specifications

Android system	Android 14.0-16.0 (optional)
CPU	Eight-core A5/Quad-core A73/Quad-core A72 Quad-core A53/Quad-core A78 Quad-core A5 (configurable)
GPU	Section-at 52×4 / G52 / 8 ON
Memory Storage	4 32G / 8 128G / 16 256G (optional upgrade)
OSD Language	English and multi-language support
OPS module (optional)	Windows Windows/11;i3/i5 / i7;8 256G / 16 512G and higher

Audio System

Speaker layout	Left and right front channels
vocal tract	2.0 Stereo
Speaker power	2 × 15W

WiFi and Wired Networks

wired local area network	10/100Mbps Ethernet
WiFi Hardware	Dual-band built-in WiFi, support AP hotspot
WiFi Standard	Station: 802.11 b/g/n；AP 热点: 802.11 a/b/g/n/ac
frequency band	Station: 2.4GHz;AP hotspot: 2.4GHz / 5GHz
effective wireless distance	0~12m

Bluetooth

Module	Built-in Bluetooth
Version	Bluetooth 5.0
Operating frequency	2.4GHz
Transmission distance	0~12m

Built-in camera

Installation location	Top center embedded
Quantity	1
Camera resolution	48 million pixels
Field of view angle	Diagonal 78 °/horizontal 63 °/vertical 49 °

Microphone array

Installation location	Bottom border embedded
Number of microphones	≥ 4 element array, voice pickup range 0-8m

Electrical Specifications

Reference model	75 "QM-HB75NM
Input voltage	AC 100 ~ 240V，50/60Hz
Maximum power consumption (without OPS)	400W
Standby power consumption	<0.5W
Energy Efficiency Class (CEL)	Level 1

Indicators and physical buttons

Status indicator light	Front bezel installation
Indicator light color	Red, blue
Control button	Front bezel installation, 7 physical keys hidden interface

Environmental conditions

Operating temperature	0℃~40℃
Operating humidity	10%~85%RH
Storage temperature	-20℃~60℃
Storage humidity	10%~90%RH

I/O interface

Interface List	Type-B 2.0、Type-C、HDMI in、HDMI out、USB 2.0 / 3.0、USB-B、DP、VGA、TF 卡、MIC、RJ45 in、RJ45 out、RS232 in 等（可选）

Frequently Asked Questions

Q1: What is the Qtenboard Nissan? Can it support mass customization?

A:Qtenboard can produce about 200 units per day. If it is a large-scale order, we will directly start the full production of three production lines across the country and support mass customization.

Q2: Does the Qtenboard support white cards and customized UI/systems?

A: Yes, support white brand and customization (brand, UI, wallpaper, packaging, etc.).

Q3: What international certifications do Qtenboard have? Are there strict tests before shipment?

A:Qtenboard have CE, RoHS, COO, CCC, ISO9001 and other certification. Each product is strictly tested before leaving the factory.

Q4: How long does it usually take from order to delivery? Which logistics methods are supported?

A: We need to know your specific needs and quantity. General sample orders can be shipped within 3 working days. Support sea transportation, land transportation and air transportation.

Q5: Does the Qtenboard provide remote system upgrade and equipment management? What is the after-sales response time?

A: Yes. Qtenboard provides remote system upgrade and device management services. We are 7 x 24 hours online.

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