Optoma X309ST Technology 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector

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  • Optoma Technology X309ST 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector
  • Optoma Technology X309ST 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector
  • Optoma Technology X309ST 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector
  • Optoma Technology X309ST 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector
  • Optoma Technology X309ST 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector
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Optoma Technology X309ST Overview

Enjoy bright images at short distances with the Optoma X309ST 3700-Lumen XGA Short-Throw Classroom & Conference Room DLP Projector. Its native 1024 x 768 resolution displays data and images clearly at various viewing distances, while its 25,000:1 dynamic contrast ratio helps enhance detail in dark images. Its short 0.62:1 throw ratio allows you to place the projector just a few feet from your screen or wall for virtually shadow-free presentations.

The X309ST features HDMI, VGA, and composite video inputs for connectivity various source types, like a cable/satellite box, gaming console, Blu-ray Disc player, and more. A USB port provides power for compatible HDMI streaming media players and wireless adapters. An IR remote control is included as an added convenience.

Short-Throw Design

With a short-throw lens, you can project an impressive 100" image from just over 3' away. This allows you to place the projector closer to the wall, reducing shadows so you can present with ease.

Amazing Colors

Give powerful presentations and educational lessons with stunning colors. Optoma projectors provide reliable color performance suitable for any content and environment. From accurate sRGB colors for lifelike images to vibrant, punchy presentations, the X309ST has a display mode to meet your specific needs.

Superior Contrast

Add more depth to your image with a high-contrast projector. Compared to competing technology, Optoma DLP projectors provide you with brighter whites and ultra-rich blacks. Images come alive, and text appears crisp and clear – ideal for business and education applications.

Full 3D with Optional 3D Glasses

Optoma projectors can display true 3D content from almost any 3D source, including 3D Blu-ray players, 3D broadcasting, and compatible game consoles.

Integrated Speaker

A built-in speaker provides exceptional sound quality and an easy setup without the need for costly external speakers.

Eco+ Technology

Eco+ technology brings together high contrast, improved lamp life, and energy saving features that are easy to use while reducing power consumption.

Additional Energy Saving Options

Using the specially designed lamp modes, you can reduce the projector's power consumption by up to 70%. Each mode also has a positive effect on the lamp life, while lowering the total cost of ownership and reducing maintenance.

Quick Resume

This feature allows the projector to be instantly powered on again if it is accidentally switched off.

Eco AV Mute

Stay in control of your presentation with Eco AV mute. Direct your audience's attention away from the screen by blanking the image when it's no longer needed. This also reduces the power consumption by up to 70%, further prolonging the life of your lamp.

Direct Power On

The projector will start up instantly when power is supplied to the unit. This eliminates the need to manually turn on the projector via the remote control or the keypad, ideal for use in rooms with a master power switch.

Direct Power Off

Power off your projector immediately or directly at the outlet. This means you don't have to wait for the projector to cool down before turning it off.

Auto Power Off

There may be instances when the projector is left running when not in use. To help save energy, the "auto power off" feature automatically turns off the projector after a set period of time if it is not being used.

24/7 Operation

The X309ST is designed to operate up to 24 hours a day (with 30-minute breaks every 24 hours) in standard orientation. Perfect for applications where prolonged periods of use is required.

Wireless Ready

Instantly connect and present wirelessly from your computer or iOS or Android mobile device using the free HDCast Pro app and the optional wireless USB dongle. The app gives you the freedom to wirelessly share and present documents and photos, and it can also use your device's camera as a document camera, creating a more connected and collaborative experience for everyone.

Optoma Technology X309ST Specs

Image Display
Display System 0.55" DMD DLP
Native Chip Resolution 1024 x 768 (XGA)
Supported Resolutions Maximum: UXGA - 1600 x 1200
Maximum Brightness 3700 Lumens (ANSI)
Uniformity 75%
Offset 115% 
Aspect Ratio Native: 4:3
Supported: 16:9
Dynamic Contrast Ratio 25,000:1
DLP Link 3D Yes
Supported 3D Formats Frame Packing
Side by Side
Top Bottom
Color Wheel 6-Segment (RYGCWB)
Color Depth 10-Bit (1.07 Billion Colors)
Scan Horizontal: 15.375 to 91.146 kHz
Vertical: 50 to 85 Hz or 120 Hz
Lens f/2.7 (f = 7.15 mm)
Optical Zoom None
Throw Distance 1.31 - 11.15' / 0.4 - 3.4 m
Throw Ratio 0.62:1
Projection Size 31.9 - 247.3" / 81.0 - 628.1 cm
Keystone Correction Vertical: ± 40°
Multi-Input Support (PIP/PBP) Not Specified by Manufacturer
Ceiling Mountable Yes
Rear Screen Projection Yes
Built-In Speaker Yes (Mono)
Speaker Power 10W
Input/Output Connectors
Inputs/Outputs 1 x HDMI 1.4a (HDMI Type-A) Audio, Video Input
1 x VGA (DE-15/DB-15) Video Input
1 x VGA (DE-15/DB-15) Video Output
1 x Composite (RCA) Video Input
1 x 1/8" / 3.5 mm Mini Audio Input
1 x 1/8" / 3.5 mm Mini Audio Output
1 x USB 2.0 (USB Type-A) Power Output
1 x RS-232 (DE-9/DB-9) Control
Wireless LAN / Wi-Fi No, Optional Adapter Available
Light Source Lamp
Lamp Power 203 W
Expected Lamp Life Full Brightness: 6000 Hours
Medium Brightness: 10,000 Hours
Low Brightness: 15,000 Hours
Fan Noise Full Brightness: 28 dB
Low Brightness: 26 dB
Security Cable Lock Slot
Supported Languages Arabic
Simplified Chinese
Traditional Chinese
AC Input Power 110 to 240 VAC, 50 / 60 Hz
Power Consumption Full Brightness: 225 W
Low Brightness: 187 W
Standby Mode (Lamp Off): 0.5 W
Operating Altitude 9842' / 3000 m
Operating Temperature 41 to 104°F / 5 to 40°C
Operating Humidity 0 to 85%
Dimensions (W x H x D) 12.4 x 4.3 x 9.6" / 315.0 x 109.2 x 243.8 mm
Packaging Info
Package Weight 8.425 lb
Box Dimensions (LxWxH) 15.6 x 13.4 x 6.6"
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Warranty Information

1 Year Parts & Labor Manufacture Warranty
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