Optoma ZK521ST-B 3D Short Throw DLP Projector - 16:9 - Wall Mountable - Black

$3,999.00
$2,072.94 SAVE $1,926.06
1 availableas of 09/18/2026

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

About the Optoma ZK521ST-B 3D Short Throw DLP Projector - 16:9 - Wall Mountable - Black for Optoma ZK521ST-B

View user manual

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.

Immersive Golf Simulation

Powered by Optoma

Designed for home and commercial golf simulators, Optoma projectors deliver bright, accurate visuals, real time response, and flexible installation for an immersive golf sim experience.

Golf Sim. Color Mode for Realistic Courses

The dedicated Golf Sim Mode enhances color tuning to bring brighter blue skies, deeper shadows, and natural green grass tones-making every course look vivid and true to life.

Short-Throw Design That Eliminate Shadows

Brilliant Laser Brightness for Indoor Golf

A Perfect Fit for Any Impact Screen

Dedicated Picture Mode for Golf Simulation Software

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

Smart FitSmart MoveKeystoneFour-corner

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.

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.

Technical specifications

Technical Specifications of the Optoma ZK521ST-B 3D Short Throw DLP Projector - 16:9 - Wall Mountable - Black for Optoma ZK521ST-B

General Information

General Information specifications
Manufacturer Optoma Technology
Manufacturer Part Number ZK521ST-B
Manufacturer Website Address http://www.optomausa.com
Brand Name Optoma
Product Model ZK521ST-B
Product Name 4K Laser Short Throw Golf Sim Projector
Product Type DLP Projector

Technical Information

Technical Information specifications
Projection Method Front
3D Type 3D

Projection Lens

Projection Lens specifications
Throw Type Short Throw
Maximum Focal Length 11.60 mm
Minimum Diagonal Image Size 30"
Maximum Diagonal Image Size 25 ft
Minimum Projection Distance 39.37"
Maximum Projection Distance 32.81 ft

Lamp

Lamp specifications
Number of Lamps 1
Lamp Type Laser
Economy Mode Lamp Life 30000 Hour

Display & Graphics

Display & Graphics specifications
Native Resolution 3840 x 2160
Native Aspect Ratio 16:9
Graphic Mode 4K UHD

Image

Image specifications
Standard Mode Brightness 5000 lm
Native Resolution 3840 x 2160
Graphic Mode 4K UHD
Native Aspect Ratio 16:9
Throw Ratio 0.79 to 1
Contrast Ratio 300,000:1

Video

Video specifications
Video Signal Format PALSECAMNTSC
Video Signal Standard HDTV
Output Scan Format 2160p

Audio

Audio specifications
Speaker Included Yes

Interfaces/Ports

Interfaces/Ports specifications
HDMI Yes
USB Yes
Network (RJ-45) Yes

Battery Information

Battery Information specifications
Batteries Included Yes

Power Description

Power Description specifications
Operating Power Consumption 147 W
Voltage Frequency 60 Hz
Standby Power Consumption 500 mW

Physical Characteristics

Physical Characteristics specifications
Product Color Black
Color Family Black
Form Factor Wall Mountable
Height 4.3"
Width 8.5"
Depth 10.8"
Weight (Approximate) 6.61 lb

Miscellaneous

Miscellaneous specifications
Application / Usage CorporateMeetingClass RoomBoard RoomBusinessEducationTrainingCommercial
Package Contents
  • 4K Laser Short Throw Golf Sim Projector
  • AC Power Cord
  • Remote Control
  • 2 x AAA Batteries
  • Quick Start User Manual

Warranty

Warranty specifications
Limited Warranty 3 Year

Ratings and reviews

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.