Product Description
Optoma ZK521ST: Compact 4K UHD 5,000 Lumen Short Throw Laser Business and Education Projector
The Optoma ZK521ST short throw projector delivers 5,000 lumens of brilliant True 4K UHD sharp visuals in a compact short-throw design, enabling large, shadow-free projections even in limited spaces. Engineered for 24/7 reliability, it offers a low-maintenance, energy-efficient laser solution with centralized IT management and smart control for corporate, education, or commercial uses.
- Crisp 4K from wall to wall: True 4K UHD (3840×2160) makes text, data, and imagery sharp and readable across screen sizes up to 300″
- Project big from tight spaces: 0.79:1 short throw lens fills the screen from just 5.8 feet away
- Sustainable design: 50% recycled metal and PCR materials
- Optoma Management Suite (OMS): Enables centralized IT monitoring and control across multiple networked devices
- Optoma Smart Control App: Intelligent screen alignment and remote control directly from your mobile device
Brighter, Greener, and Longer-Lasting Projection
Future-Proofed. Sustainable. Cost-Effective.
Optoma’s new generation of lamp-free laser projectors is designed to deliver exceptional visual quality, simplified setup and control, and long-term value across business, education, or simulation environments.
Clear, Shadow-Free Projection for Ambient Light Environments
With 5,000 lumens of high brightness, this projector delivers Full HD visuals even in ambient light. Its short-throw design reduces shadows even in limited spaces, making it ideal for meetings, classrooms, and commercial environments.
Exceptional 4K Viewing Experience
This projector delivers up to 8.3 million pixels in 4K UHD (3,840 × 2,160) resolution using advanced DLP technology, producing exceptionally sharp images where even small text and detailed graphs remain clear and easy to read.
Reliable for Long-Term Use with DuraCore Laser
Optoma DuraCore Laser technology delivers consistent brightness, vivid colors, and up to 30,000 hours of lamp-free operation. With instant on/off functionality, reduced power consumption, and no lamp replacements, it offers a lower total cost of ownership and long-term, reliable performance—ideal for business and education environments.
Tailored Display Modes for Business and Education
Tailored display modes for business and education. Optoma projectors deliver long-lasting image precision with DLP technology, ensuring accurate, vibrant colors that bring every detail to life.
Smart Control at Your Fingertips
Optoma Smart Control app streamlines device management and intelligently adjusts screen alignment across Optoma displays, all from your mobile device. From setup to daily operation, it acts as an intelligent remote, enabling control of key functions such as power on/off, input source switching, status alerts, and more, helping users save time and deliver a better viewing experience in any space.
- Supports both iOS and Android OS.
Smart Screen Alignment for Quick Installation
Instant auto-alignment with Smart Fit
Smart Fit uses your smartphone’s camera to detect the screen frame and automatically correct the image alignment, significantly reducing installation effort.
Smart Move keeps your screen uninterrupted
Smart Move automatically detects obstacles using the camera and seamlessly repositions the projection to a clear, unobstructed area, ensuring continuous visibility.
H/V Keystone correction
Keystone correction adjusts trapezoid-shaped images caused by angled projection. An intuitive slide dial enables quick and smooth adjustment of vertical and horizontal alignment.
Four-corner adjustment
Correct image distortion effortlessly with four-corner adjustment. Just tap and drag any corner to reshape the frame in real time.
Manage, Monitor, and Diagnose—All from One Place
Optoma Management Suite (OMS™) is an intuitive (cloud-based or via local networking) display management solution, designed to streamline operations by monitoring, diagnosing and controlling audio visual displays from anywhere via a single plarform. With an easy-to-use interface and 24/7 real-time monitoring, OMS enables users to check the status of display devices and make configurations to optimise performance.
Always Stay Updated
This product supports over-the-air (OTA) firmware updates, keeping your projector up to date without the need for USB drives. Updates are delivered automatically, and users simply click Download to install them. Updates may include new features, performance enhancements, and security improvements. This helps reduce IT workload and ensures reliable operation.
Flexible Setup for Any Spaces
With ±15° keystone correction, and support for 360-degree or portrait mode projection, this projector offers flexible installation in any space.
H/V keystone correction
Four-corner adjustment
Vertical Lens shift
Designed for Sustainability
Aligned with Optoma’s Green Promise, this projector features an energy-efficient, mercury-free DuraCore laser light source. Built with over 50% recycled metal and PCR materials and packaged in 100% recyclable packaging, it is designed to reduce material waste and power consumption in support of sustainability.
Eco-friendly packaging
Eco-friendly packaging produced with FSC-certified paper and made with recycled and reusable materials.
Sustainable materials
Use of environmentally, friendly materials for products chassis and during production
