Chalk on the outside. Intelligence inside.
The 9RIVER Smart Blackboard keeps the writing surface teachers know — chalk and marker across the full board — while embedding a 4K multi-touch interactive display in the centre. Slide the side panels across the screen and it reads as a traditional blackboard; slide them open and the class gains smooth touch control and real-time annotation.
Technical specifications
Embedded interactive module — figures from the product specification sheet. Board dimensions and module sizes are configured per project.
- Display
- 4K UHD (3840 × 2160) IPS panel · 60 Hz · 8 ms response · 1.07 B colours
- Glass
- 3 mm anti-glare tempered glass · zero-gap bonding for low-parallax writing
- Touch
- Infrared recognition · ±1 mm accuracy · dual-pen simultaneous writing with dual-colour display
- System
- Android 14 · 4 GB RAM / 32 GB ROM · Windows OPS optional
- Camera & audio
- Optional 48 MP top-bezel camera · built-in 8-array microphone
- Connectivity
- Dual-band 2.4 GHz / 5 GHz Wi-Fi (AP + STA concurrent) · built-in wireless screen mirroring
- Front I/O
- 2 × USB 2.0 front-mounted + 2 × onboard, with dynamic channel switching
- Convenience
- Ambient light sensor with auto brightness · dual magnetic pen docking · smart wake-up via HDMI / RS-232 / network signal
One board, two teaching modes
The push-pull side panels glide across the embedded screen on the same rail system as our interactive flat panel line.
- Closed — a full-width traditional blackboard for everyday board work
- Open — the 4K touch display takes over for media, courseware and annotation
- Writing continues on the exposed panel while the screen is in use
- No projector, no calibration — the display is always aligned behind the panels
Built for daily board work
Chalk & marker
The full board surface accepts chalk and whiteboard marker, so teachers keep the habits and lesson flow they already have.
Eye-care construction
Anti-glare tempered glass and ambient-light brightness adjustment keep the display comfortable through back-to-back lessons.
Dual-pen writing
Two pens write simultaneously on the touch display with dual-colour ink — ideal for side-by-side problem solving and group work.
A complete teaching computer behind the glass
The centre panel is a full interactive module, not a passive screen — courseware, mirroring and annotation all run on board.
- Android 14 on board with Windows OPS slot for exam-board software
- Wireless screen mirroring from teacher and student devices
- Optional 48 MP camera and 8-array microphone for hybrid lessons
- Sizes and module configuration specified per classroom project
