Optoma W340UST WUXGA Ultra Short Throw Projector

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With extremely short throw distance, this projector can be mounted close to the wall and eliminate the shadows, specially designed for education and business applications. At over 4000 lumens of brightness, it offers auto keystone and 4 corner adjustment functions to fit restricted environments. Essential capabilities such as USB Reader, USB Display and network connectivity for more flexible operations are included.


Optoma W340UST WXGA 4000 Lumens Ultra Short Throw DLP Projector connectivity panel


The added benefit of the split screen feature and blackboard mode enables more effective interactions and productivity. This projector offers best performance and the best value over comparable products.

Ultra Short Throw Lens Design

With an ultra-short throw lens, you can project an impressive 100” image from just less than 30 cm away from a flat surface or screen. Ultra short throw projectors can be mounted close to the wall and eliminate the shadows, are the best solution for presentation scenarios. 

Lightweight Design

This projector has an even lighter design that weight less than 4kg. This makes you much easier to install and set up at home. 

Auto Vertical Keystone

Adjust the vertical image angle to project a perfect square image automatically. Auto keystone correction makes it easy to set the screen configurations from a variety of locations.

Auto Vertical Keystone

2D Keystone Correction

Digital horizontal & vertical keystone lets you adjust the form of an image to get a proper rectangular shape on both sides.

4-Corner Adjustment

By individually adjusting each corner of the image, our 4-Corner Adjustment eliminates any crooked or distorted images in off-angle or restricted space installations for that perfect picture.

4-Corner Adjustment

USB Display

Mirror your iOS or Android screen by connecting the device to the projector with your USB charging cable. Conveniently and easily to share your content to the big screen. (Android, IOS only) 

USB Reader (Photo and document viewer)

From now on, you don’t need a PC or a laptop to display your favorite photos. With the built-in USB reader, simply by plugging in a USB storage device, you can directly view and enjoy photos, even documents including PowerPoint, Word, Excel and PDF file formats.


USB Reader


Wireless display (*optional)

With an optional WiFi dongle and using Optoma’s free EZCast Pro mobile APP, you can wirelessly connect to your laptop, tablet or mobile device and project your content to the big screen. With WiFi display, you can eliminate cable clutter and increase connection versatility.

Quiet operation

Noise level only at 25dB. 

Split Screen

Through our free app, the EZCast Pro App, projecting up to 4 images simultaneously from different images sources can greatly improve the efficiency of the meeting.

Split Screen 

Sketch Function

Through our free app, the EZCast Pro App, marking your shared content at your fingertips for effective interaction.

Sketch Function 

Blackboard Mode

Blackboard mode is perfect for interactive teaching. It enables projection on dark-surfaced screen by adjusting the color gamut of the display. Additionally, W340UST's blackboard mode turn the original images to grey scale for a sharper display.

Blackboard Mode

24/7 Operation

The W340UST has been designed to operate 24 hours a day in standard orientation. Perfect for applications where prolonged periods of use is required. 

Integrated Speaker

Complete your home entertainment experience with the convenience of a powerful built-in speakers, and provide exceptional sound quality and are easy to set up without the need for costly external speakers.

LAN display

Via LAN connection, you can mirror your PC or laptop display to the big screen. Specially designed for business and education environments. 

LAN Control

The RJ45 port provides additional network control ability. Crestron RoomView, Extron’s IP Link, AMX dynamic device discovery and PJ-Link protocols are fully supported

Gabi Recommends

If you are looking to wall-mount this projector the OWM3000 is a great option.

Projector Throw Distance Chart (WXGA)

Image Diagonal (inch) Width of Image Size Height of Image Size Distance between the wall (projection surface) to the back of projector
Distance between the wall (projection surface) and the front of the projector
(inch) (m) (inch) (m)
85 72.1 1.83 45.0 1.14 0.177 0.560
87 73.8 1.87 46.1 1.17 0.188 0.571
90 76.3 1.94 47.7 1.21 0.205 0.588
100 84.8 2.15 53.0 1.35 0.262 0.645
110 93.3 2.37 58.3 1.48 0.319 0.702
115 97.5 2.48 60.9 1.55 0.348 0.731

* Projection distances are design specifications, so there is ±5% variation. 


Display Technology DLP
Native Resolution WXGA 1280 x 800
Brightness 4,000 Lumens
Contrast 22,000:1
Light Source Lamp
Lamp Life 4000/10000/15000 hrs (Normal/ ECO/ Dynamic mode)
Lamp Type 240W
Throw Ratio 0.27:1
Zoom Type Fixed
I/O Connectors VGA in/out, HDMI x2 (MHL x1), Composite, RS232, LAN, USB x2, Audio in/ out
Speaker (Watts) 16W
Keystone Correction ±4° Vertical, ±4° Horizontal
Weight (Kg) 3.9
Dimensions (W x D x H) (mm) 343 x 383 x 96.5
Aspect Ratio 16:10 Native, 16:9 and 4:3 Compatible
Projection Screen Size 85"~115"
Projection Distance 0.485 – 0.656 m
Computer Compatibility UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
Video Compatibility HDTV (720p, 1080i/p), SDTV (480i/p, 576i/p)
Horizontal Scan Rate 15.375~91.146 KHz
Vertical Scan Rate 24 – 85Hz
Displayable Colors 1073.4 million colors (10 bit)
Noise Level 25dB (Eco mode)
Power Supply 100-240V, 50-60Hz
RoHS Compliant