Optoma 1751RK interactive whiteboard 190.5 cm (75") 3840 x 2160 pixels Touchscreen Black HDMI

Lightweight design & low power consumption for energy-conscious schools Optional Expandable storage (via TF card) for flexibility 40-point touch for whole-class collaboration Backed by Optoma’s trusted reliability Optoma Creative Touch 1-Series: Smart-Value Interactive Learning for Every ClassroomThe Optoma 1-Series is built to give schools what they really need—powerful, reliable interactive teaching tools at a price that makes sense. Designed with teachers and students in mind, it brings together the essentials of modern learning without the unnecessary extras that push budgets out of reach.1-Series: Smart-Value Interactive Learning for Every ClassroomThe Optoma 1-Series is built to give schools what they really need—powerful, reliable interactive teaching tools at a price that makes sense. Designed with teachers and students in mind, it brings together the essentials of modern learning without the unnecessary extras that push budgets out of reach.Why educators love it:- Lightweight design & low power consumption for energy-conscious schools- Optional Expandable storage (via TF card) for flexibility- 40-point touch for whole-class collaboration- Backed by Optoma’s trusted reliabilityHybrid Learning – Teach beyond the classroomTeach in real-time, no matter the location of the student. Optoma’s Creative Touch interactive displays are perfectly suited to the ever-changing needs of educational environments.Designed to support distance learning, students can work together in real time from home, in the classroom or anywhere, maximising engagement in remote and hybrid learning environments. With the ability to connect to webcams and other visualisers along with Optoma’s unique software, the Creative Touch interactive displays provide the ultimate collaboration solution for education.Display Share 2Display Share 2 Advanced wireless sharing built for modern collaboration.Wirelessly cast and share content using AirPlay or Google Cast. Display Share 2 supports Android, iOS, Windows, macOS, Chrome, and wired USB casting for iOS and Android when network access isn’t available.Enable true multi-user collaboration with multiple participants casting simultaneously across up to 16 screens, one-to-many broadcasting, and display grouping with touch control and annotation. Enhanced moderator controls, security features, smart screen layouts, and global cloud casting ensure a seamless, secure, and scalable sharing experience in any environment.1-Series Hardware HighlightsSmart-Value for Education – The 1-Series delivers a complete interactive experience—40-point touch, embedded whiteboard, and wireless sharing—at an accessible price, making it perfect for district-wide rollouts.Crystal-Clear Clarity – With 4K resolution and zero bonded glass, every diagram, video, and interactive activity looks sharp and vibrant, even at the back of the room.Future-Ready PerformanceFuture-Ready Performance – Powered by Android 14 and an 8-core processor, lessons run smoothly and apps launch fast, ensuring students stay engaged and teachers stay in control. Display Hardness 7H Viewing angle, horizontal 178° Viewing angle, vertical 178° Number of simultaneous touchpoints 40 Touch technology Multi-touch Touchscreen Yes Response time 8 ms Contrast ratio (typical) 1200:1 Contrast ratio (dynamic) 5000:1 Native aspect ratio 16:9 LED backlighting type Direct-LED Panel type VA LED backlight Yes HD type 4K Ultra HD Anti-glare screen Yes Display resolution 3840 x 2160 pixels Display number of colours 1.07 billion colours Display brightness 350 cd/m² Display diagonal 190.5 cm (75") Computer system Graphics card Mali-G52 MC3 Graphics card family ARM RAM capacity 8 GB User memory 64 GB Processor cores 8 Processor architecture ARM Cortex A72 + ARM Cortex A53 Built-in processor Yes Operating system version 14 Operating system installed Android Audio Speaker power 40 W Number of built-in speakers 2 Built-in speaker(s) Yes Network Ethernet LAN Yes Bluetooth version 5.2 Wi-Fi standards Wi-Fi 6 (802.11ax) Top Wi-Fi standard Wi-Fi 6 (802.11ax) Wi-Fi Yes Ports & interfaces RS-232 ports 1 Headphone connectivity 3.5 mm S/PDIF out port Yes OPS slot 1 VGA (D-Sub) ports quantity 1 Ethernet LAN (RJ-45) ports 2 DisplayPorts quantity 1 HDMI output ports quantity 1 HDMI version 2.0 USB Type-C ports quantity 1 HDMI ports quantity 4 USB connector type USB Type-A, USB Type-C USB 2.0 ports quantity 1 USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 4 Interface HDMI Ergonomics Wall mountable Yes Panel mounting interface 800 x 400 mm VESA mounting Yes Product colour Black Performance Compatible memory cards SD Card reader integrated Yes Ambient light sensor Yes Power AC input voltage 100 - 240 V AC input frequency 50/60 Hz Power consumption (typical) 170 W Power consumption (max) 340 W System requirements Mobile operating systems supported Android Linux operating systems supported Debian 10 Windows operating systems supported Windows 10, Windows 8,