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Optoma ZK431ST-B Short Throw 4K Golf Simulator Projector - 4100 Lumens Laser (Garage)
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Optoma ZK431ST-B 4K Short Throw Laser Projector – 4,100 Lumens for Garage Golf Simulators & Compact Spaces
The Optoma ZK431ST-B is a premier, high-brightness golf simulation projector offering cinematic-grade True 4K resolution tailored specifically for garages and compact spaces. Featuring an ultra-short 0.496 throw ratio, it eliminates the need for massive room depth, allowing you to easily enjoy a hyper-realistic, immersive 4K golf and entertainment experience even in the tightest setups. Powered by 4,100 lumens, a 30,000-hour zero-maintenance DuraCore laser, and easy four-corner correction, it delivers crystal-clear, lights-on course visuals with effortless screen alignment.

Optoma ZK431ST-B Highlights for Garage Setups
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0.496 Ultra-Short Throw: Project a massive, immersive image from just feet away. This ultra-tight throw maximizes small garage footprints and allows full-scale simulation in shallow room depths.
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Shadow-Free Swings: Mounted safely close to the screen, it keeps the projector completely clear of your swing path while eliminating annoying player shadows on the impact screen.
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4,100 Lumens Laser Brightness: Engineered to crush ambient garage light. Enjoy crisp, vivid, lights-on play powered by a 30,000-hour zero-maintenance DuraCore laser engine.
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True 4K Resolution: Ultra-sharp 4K UHD clarity displays crisp fairways, readable simulator overlays, and hyper-realistic course textures, making elite simulation software like GSPro, E6 Connect, and TGC 2019 look stunningly lifelike.
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Easy Four-Corner Correction: Effortlessly squares and dials in a perfect fit on any impact screen, eliminating tedious manual leveling in tight or awkward mounting positions.
Product Features & Specs
| Feature | Specification |
| Resolution & Lumens | True 4K UHD (3840×2160) – 4,100 ANSI Lumens |
| Display Type | DLP Projector |
| Contrast Ratio | 300,000:1 (2,000,000:1 Dynamic) |
| Native Aspect Ratio | 16:9 |
| Throw Ratio | 0.496 (Ultra-Short Throw) |
| Keystone Adjustment | Vertical ± 15°; Horizontal ± 15° (Four-Corner Correction) |
| Light Source | Maintenance-free DuraCore Laser (Up to 30,000-hour lifespan) |
| Audio / Speaker | 1 x 15W Powerful Built-in Speaker |
| Connectivity/Interfaces | HDMI 2.0 (x2); VGA In (x1); USB-A 2.0 (x2); 3.5mm Audio Out (x1); 3D Sync Out (x1); RJ45 (x1); RS232 (x1); 12V Trigger (x1) |
Product Dimensions & Weight
Engineered with an ultra-compact footprint to easily fit into floor enclosures, tight ceiling mounts, or small spaces without cluttering your room:
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Dimensions (W x H x D): 10.80" × 4.30" × 8.50" (216 mm × 108.5 mm × 274 mm)
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Weight: 6.3 lbs (2.9 kg)
What’s Included in the Box
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Hardware: Optoma ZK431ST-B 4K Laser Projector
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Accessories: Remote control (with batteries), AC power cable, and manufacturer documentation / quick start guide
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Manufacturer Warranty: 3-Year Full Warranty
Note for Package Buyers:
If you select one of our Projector Packages from the dropdown menu above the "Add to Cart" button, any additional package accessories will ship and arrive in a separate box.
The Ultimate 4K Simulator Experience: Who It’s For
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Garage & Compact Home Setups: Ideal for transforming garages, basements, or shallow spare rooms into high-end bays with its ultra-short 0.496 throw and 4,100 lumens of lights-on brightness.
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Commercial Academies & Fitting Bays: Built for 24/7 continuous operation with a 30,000-hour zero-maintenance laser—a heavy-duty workhorse for teaching pros, fitting centers, and venues.
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Multi-Purpose Media Rooms: Seamlessly transitions from an ultra-crisp 4K golf studio to a cinematic home theater or low-latency gaming hub.
Throw Ratio & Setup
Ultra-Tight 0.496 Short Throw for Shadow-Free Play Create a massive, breathtaking simulator setup even in tight, shallow environments. Because the Optoma ZK431ST-B utilizes an ultra-short 0.496 throw ratio, it sits safely in front of the hitting area rather than behind it. This means you can swing with absolute confidence knowing your body will never block the light beam or cast distracting shadows over your screen.

Perfect Alignment in Seconds
Effortless Image Alignment Right From Your Phone.
No more climbing ladders or fighting with awkward physical mounts. With the Optoma ZK431ST-B’s Four-Corner Adjustment, H/V lens shift, and 3D keystone correction, dialing in a squared image onto your impact screen is instant. Simply open the Optoma Smart Control App on your phone, tap and drag any corner in real-time, and eliminate trapezoid distortion for a seamless, perfectly fitted golf simulation setup.
Protect your investment - Premium Projector Mount and Shields.
Mounts, Cables & Complete Package Options
Please note that standalone projector boxes do not include mounting hardware or long-run HDMI cables.
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Complete Setup in One Click: Select your configuration from the Projector Packages Dropdown located directly above the Add to Cart button. In a single click, get a market-tested, complete setup—including your projector, mounting kit or protective enclosure, high-speed HDMI cable, and essential accessories.
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Every Mount & Enclosure Option Covered: We carry the full variety of setup solutions—from floor mounts and heavy-duty protective enclosures to clean ceiling mounts and multi-aspect-ratio adjustable mounts; each specifically engineered to match this projector's performance and room layout.
You won't find complete, golf-exclusive projector packages as thoroughly engineered, tested, or effortlessly configured anywhere else on the web.
Premium Projector Mount and Shields.
| Variant | Best For (Setup) | Specs |
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Best for Standard Ceilings (8–9.5 ft) — Low Profile & Easy Slide | Black | Universal Flat Mount | 24" Span (13" Slide Travel) |
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Adjustable Ceiling Drop Mount
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Best for High Ceilings (10 ft+) — Vertical Extension | Black | Optoma Universal Projector Mount | 22.68"–32.87" Adjustable Drop |
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Best for Floor Setup — No Ceiling Mounting Required | Built-in cooling system | Projector tilt adjustment for perfect screen fit |
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Best for Full Impact Protection & Commercial Builds | Ceiling mount drop up to 22" (depending on the lowest point of the bottom of the projector to the ceiling) |

Protect Your Investment: Heavy-Duty Projector Enclosures
Safeguard your Optoma ZK431ST-B with the heavy-duty Optic Cage Floor Shield—the ultimate combo for your simulator setup. Tailored perfectly for the ZK431ST-B’s 0.496 ultra-short throw, this premium enclosure completely shields your optics from stray balls and errant swings. Choose between clean floor setups or secure ceiling mounts for effortless alignment and total peace of mind.
Golf Simulator Customization
Turnkey Pro Studios specializes in custom studio design and projector setup. Contact us directly for expert assistance with room dimensions, throw distance calculations, and tailored hardware configurations for your space.
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Email: sales@turnkeyprostudios.com
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Phone: 402-577-0167
CUSTOM LAYOUTS & EXPERT SETUP
Custom Sim Layouts Built For Your Space
From custom screen dimensions to exact ZK431ST throw distance and room placement, our experts design tailored golf sim layouts for any space. Contact us today for personalized setup advice.
4K UHD Resolution (3840 × 2160)
Delivering 8.3 million pixels on screen, 4K UHD keeps your simulator image razor-sharp; even on massive 10-to-16-foot impact screens. Stand close at the hitting tee without seeing pixelation, with crisp definition on green contours, fairway turf, and instantly readable launch monitor telemetry like spin rate and ball speed.
Shadow-Free Location for Every Swing
The ZK431ST-B’s short-throw lens and low offset let you place the projector safely behind the golfer for a clear, shadow-free hitting zone, keeping it out of the swing path and away from pop-up shots.
Optoma ZK431ST-B Short Throw 4K Golf Simulator Projector Further Information.
Shipping Rates & Timelines
- Free Standard Shipping: We are proud to offer free standard shipping on our systems.
- Processing Time: 2-3 Business Days (This includes thorough quality checks and secure packaging).
- Transit Time: 3-5 Business Days via trusted carriers (UPS or FedEx).
- Total Delivery Timeline: You can expect your order to arrive within 5-8 Business Days.
- Multiple Packages / Split Shipments: If you purchased accessory packages, your items may arrive in different boxes and at slightly different times. Because we partner with specialized, top-tier suppliers to bring you the best components, different parts of your order may ship from separate warehouses.
Order & Shipping Confirmation
Once an order is placed, a confirmation email will be sent. This means that Turnkey Pro Studios has received your order in our system. Once received, we immediately reach out to our suppliers to confirm that the ordered items are in stock and ready for shipment.
If any item is out of stock, on backorder, or otherwise unavailable, Turnkey Pro Studios will notify you promptly via email. Once your product(s) are confirmed and ready for transit, they will be shipped out.
Tracking & Cancellations
An email with your tracking information will be sent to you within 24 hours of your order being shipped. If you have not received tracking information within 3 business days after the lead time posted on the product page, please contact our support team.
Please Note: Once an order has shipped, cancellation is not permitted. Please see our "Cancellations & Returns" policy for more details.
- 0.496:1 Ultra-Short-Throw Lens: Mounts ultra-close overhead for a shadow-free picture in compact simulator rooms.
- 4,100 Lumens Brightness: Keeps visuals bright and crisp with full room lights on.
- Dedicated Golf Sim Color Mode: Tunes greens and sky blues for vibrant, realistic course graphics.
- True 4K UHD Resolution: Delivers razor-sharp fairway textures and clear shot data overlays.
- 30,000-Hour DuraCore Laser: Maintenance-free, instant-on light engine with zero lamp replacements.
- Smart Fit & 4-Corner Alignment: Easily squares the image to your impact screen using the Smart Control app or 4-corner adjustment.
Display Performance
- Display Technology: Single-Chip DLP®
- Native Resolution: True 4K UHD (3840×2160)
- Brightness: 4,100 Lumens
- Contrast Ratio: 300,000:1 (2,000,000:1 Dynamic)
- Native Aspect Ratio: 16:9 (Compatible with 4:3, 16:10, Full, Auto, Native)
- Keystone Correction: Horizontal ±15°; Vertical ±15°
- Screen Size Range: 30" to 300" diagonal
- Uniformity: 75%
Optical Specs
- Throw Ratio: 0.496 Ultra-Short Throw
- Lens Shift: N/A (Native Offset: 114%)
- Projection Distance: 12.99" – 129.92" (0.33 m – 3.30 m)
- Focal Length: 7.51 mm
Light Source
- Light Source Type: DuraCore Laser Engine
- Lifespan: Up to 30,000 hours (Eco mode)
Input Lag & Gaming Speed
- 4K @ 60Hz: 16.7 ms
- 1080p @ 60Hz: 16.7 ms
- 1080p @ 120Hz: 8.6 ms
Connectivity & Control
- Inputs: 2 x HDMI 2.0, 1 x VGA-In
- Outputs: 2 x USB-A 2.0, 1 x 3.5mm Audio Out, 1 x 3D Sync Out
- Control Ports: 1 x RJ45 (LAN Control), 1 x RS232, 1 x 12V Trigger
General & Operational
- Audible Noise: Quiet 29 dB
- Audio: 1 x 15W Built-In Speaker
- Operation Rating: 24/7 Continuous Operation & 360° Orientation
- Security Features: Security Bar, Kensington Lock, Password-Protected Interface
Power & Energy
- Power Supply: AC 100 ~ 240 V, 50 ~ 60 Hz
- Power Consumption (Bright Mode): 178 W @ 110VAC
- Power Consumption (Eco Mode): 125 W @ 110VAC
- Standby Consumption: ≤0.5 W
Dimensions & Weight
- Dimensions without feet (W x D x H): 10.8" × 8.5" × 4.3" (216 × 274 × 108.5 mm)
- Dimensions with feet (W x D x H): 10.8" × 8.5" × 4.5" (216 × 274 × 114 mm)
- Net Weight: 6.3 lbs (2.9 kg)
- Gross Weight: 9.4 lbs (4.3 kg)
Package & Software
- In the Box: AC Power Cord, Business Remote Control, 2 x AAA Batteries, Quick Start User Manual
- Supported Software: Optoma Smart Control App, Optoma Management Suite (OMS)
Will the Optoma ZK431ST-B fit in my simulator room?
Featuring an ultra-short 0.496:1 throw ratio—the tightest in Optoma's golf lineup—the ZK431ST-B is engineered to fit into compact spaces. Because required placement varies based on ceiling height and screen dimensions, reach out to the Turnkey Pro Studios team at sales@turnkeyprostudios.com to calculate exact room measurements before ordering.
Is 4,100 lumens bright enough for my golf setup?
Yes. With 4,100 ANSI lumens, the ZK431ST-B delivers crisp, vivid images in basements, garages, and dedicated indoor rooms with controlled lighting. If you plan to project onto an oversized 150"+ screen or have high natural ambient light, consider stepping up to the 5,000-lumen ZK521ST-B or consult the Turnkey Pro Studios team at sales@turnkeyprostudios.com for guidance.
Does the Optoma ZK431ST-B work with GSPro, E6 Connect, and TGC 2019?
Equipped with dual HDMI 2.0 inputs, the ZK431ST-B displays output from all major golf simulation software platforms, including GSPro, E6 Connect, and TGC 2019. Software compatibility is handled directly through your gaming PC.
What makes the Golf Sim Short-Throw Lens special?
Unlike standard commercial projectors, this model features optics specifically engineered to position the projector extremely close to the screen, eliminating annoying player and club shadows during a swing. Combined with a dedicated Golf Sim Color Mode tuned for lifelike grass and sky tones, it delivers an optimized, realistic course view.
How does the ZK431ST-B compare to the ZK521ST-B?
Both models feature the same build quality, 30,000-hour DuraCore laser light source, True 4K UHD resolution, and specialized golf picture modes. The key differences lie in brightness and throw distance: the ZK431ST-B pairs 4,100 lumens with an ultra-short 0.496:1 throw ratio (best for tight rooms with light control), while the ZK521ST-B offers 5,000 lumens with a 0.79:1 throw ratio (ideal for larger screens or brighter spaces).
What warranty comes with the Optoma ZK431ST-B?
The unit includes Optoma's standard manufacturer warranty (terms vary by region). Contact the Turnkey Pro Studios team at sales@turnkeyprostudios.com for detailed warranty specs or extended coverage options.
What mounting options work with the Optoma ZK431ST-B?
Because of its ultra-short-throw lens design, the ZK431ST-B can be mounted on either the ceiling or the floor. Overhead installations work seamlessly with universal ceiling mounts. For low ceilings or rooms where overhead installation isn't ideal, the short projection distance makes floor placement inside a protective enclosure (Optic Cage Floor Mount Enclosure) just as practical without creating shadows on the screen.
Warranty, Returns & Order Policies
At Turnkey Pro Studios, all electronic products ship factory-new, pre-tested, and fully insured in original manufacturer packaging. To protect your investment and maintain professional-tier pricing, our warranty and return policies are structured as follows:
Optoma Factory Warranty
- Projector Hardware: Backed by Optoma’s 3-Year Limited Parts & Labor Warranty, covering optics, chassis, and internal hardware against manufacturing defects.
- Laser Light Source: Includes a 5-Year or 12,000-Hour Warranty on the laser light source (whichever comes first).
- Dedicated Studio Assistance: You never have to navigate claims alone. If a hardware issue arises, contact us directly and our team will facilitate warranty service with the manufacturer on your behalf.
Defective / DOA Support
- Claim Submission: If your projector arrives defective or experiences an initial hardware fault (DOA), contact our support team at sales@turnkeyprostudios.com to submit your claim.
- 30-Day Return Window: Once your claim is approved, you have a 30-day window to return the unit to the manufacturer.
Zero-Return & Final Sale Policy for Electronics
- Final Sale Upon Acceptance: To guarantee every customer receives factory-sealed, uncompromised gear, sales on electronic items (launch monitors, projectors, computers) are final once delivery is accepted from the carrier.
- No Returns for Change of Mind: We do not accept returns or exchanges for buyer's remorse, preference changes, or improper room planning.
- Cancellations: Order cancellation requests must be submitted prior to shipping confirmation. Once shipped, standard final sale terms apply.
Shipping Damage Protection & 24-Hour Rule
- 100% Insured Delivery: Every shipment is fully insured against transit damage.
- 24-Hour Reporting Window: If your shipment arrives damaged, take clear photos of the external packaging and damaged product, then notify sales@turnkeyprostudios.com within 24 hours of delivery to process a replacement.
- Delivery Refusal: Inspect packages upon arrival and refuse delivery if there is obvious external damage (crushed, torn, or severely dented boxes).
Certified Systems Integrator
As a specialized systems integrator, we do more than just resell products. We vet, test, and authorize only market-proven hardware from elite manufacturers. By sourcing through TurnKey Pro Studios, you are guaranteed authentic, high-performance gear backed by professional-grade technical certification.
Stealth-Quiet™ Impact Technology
Our triple-layer screens are engineered for industry-leading noise reduction. They are the premier choice for residential garages, luxury hotels, and commercial lounges where acoustic control is a priority.
Smart Installation Frameworks
Skip the complexity. We offer Smart Frameworks designed for rapid deployment, reducing setup time from hours to minutes. Our modular systems ensure professional stability with intuitive, tool-efficient assembly.
"Build Your Own" Studio Tools
Eliminate the guesswork with our interactive Build Your Own Simulator page. You select the specific components, from launch monitors to enclosures, giving you total control over your configuration while ensuring every part is technically compatible.
Expert Consultations in <24 Hours
Get recommendations from specialists who understand the technical nuances of golf simulation. Reach out today, and our experts will provide a tailored response to assist your journey within 24 hours.
Tier-Level Technical Support
We are your dedicated partner for the life of your studio. From initial configuration to long-term maintenance, we provide expert, Tier-Level support to ensure your system operates at peak efficiency from day one. We take pride in providing the fastest technical customer support in the industry to keep you up and running.
Initiate Your Project
Share your project dimensions below to custom-size your Golf Simulator, or contact our studio directly at sales@turnkeyprostudios.com
















