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Optoma EH340UST Ultra Short Throw 1080p Multimedia Projector

Part #: OPTEH340UST  |   Mfg #: EH340UST
Optoma EH340UST Ultra Short Throw 1080p Multimedia Projector Optoma EH340UST Ultra Short Throw 1080p Multimedia Projector Optoma mpn:EH340UST
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Ultra Short Throw 1080p Multimedia Projector EH340UST

  • Bright 4,000 lumens and 20,000:1 contrast ratio produce razor-sharp images

  • PC-free USB image viewer and office document reader

  • Wireless presentations and images with HDCast Pro (USB Wi-Fi adapter included)

  • USB display screen mirroring with iOS and Android devices

  • LAN display via Ethernet with Windows and Mac OS X

  • Auto keystone and four corner correction for robust installation


Enhance presentations and events with colorful and bright 4,000 lumen 1080p images from the Optoma EH340UST. Its 20,000:1 contrast ratio and ultra short throw ratio display sharp 100-inch images from inches away – perfect for space constrained environments such as small classrooms, meeting rooms, boardrooms and digital signage applications.

A PC-free image viewer and document reader display office documents, PDFs and images from USB storage devices. HDCast Pro connecitivity provides wireless screen mirroring with Android, Mac OS and Windows devices.

LAN display supports up to 4 simultaneous computers while USB display mirrors Android and iOS devices. Four corner geometric correction allows flexible installations while robust input options include HDMI, VGA and RJ-45 for connectivity to a wide range of devices.


DLP Technology®

DLP® (Digital Light Processing) is a proprietary technology from Texas Instruments™ that offers digital projection with higher contrast, faster response time, good pixel structure and virtually no color degradation.

Ultra Short Throw

Ultra short throw projection enables closer placement to the wall with reduced shadows for easy presenting. The placement makes it perfect for interactive applications and education environments, too.

PC-free USB Image and Document Viewer

Integrated PC-free image and document viewer provide direct viewing of office documents, PDFs, images and presentations from any USB storage device.

HDCast Pro – Wireless Display and Document Casting

Screen mirror Android, Windows and Mac devices wirelessly; Cast images and documents from Android, iOS, Windows and Mac devices or use USB Display to screen mirror Android and iOS devices.

RS-232 Control

Take control of the projector using HEX or ASCII commands via RS-232 cable.

Four Corner Adjustment

Four corner geometric correction enables quick and easy image adjustments from any of the corner points of the image. This is ideal for uneven or angled projection surfaces.

Click on a spec (like Resolution:) to learn more about it. Click here for the complete glossary.
Image Quality Projector Calculator See Optoma EH340UST Ultra Short Throw 1080p Multimedia Image Size Calculator »
Resolution HD (1920 x 1080)
Brightness 4000 lumens
Contrast Ratio 20000:1
Uniformity 80%
No. of Colors 1.07 Billion Colors
Aspect Ratio(s) Native - 16:9
Display Type DLP (1 chip);
Video Signals NTSC, PAL, SECAM, SDTV 480i/p, 576i/p, HDTV 720p(50/60Hz), 1080i(50/60Hz), 1080P(50/60Hz)
H Sync --
V Sync --
3D Ready No
Dot Clock --
Inputs / Outputs
  • HDMI (High-Definition Multimedia Interface for digital video and digital audio)
  • Ethernet/RJ45 (Network addressable, RJ45)
  • USB
  • VGA (Analog data, mini D-Sub 15-pin)
  • RS-232 (Serial)
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Built-in Audio 16W
Projection Lens Projector Calculator See Optoma EH340UST Ultra Short Throw 1080p Multimedia Image Size Calculator »
Lens F=2.4, 3.72mm manual focus
Throw Ratio --
Keystone Corr. Horizontal and Vertical
Specs: 4 horizontal/vertical
Lens Shift --
Proj. Methods Ceiling, Desktop, Front, Rear
Dimensions 13.5" x 4.75" x 14.25" (W x H x D)
Unit Weight 8.7 lbs.
Power Supply Auto-ranging: 100V ~ 240V 10%, 50-60Hz
Power Consumption 285
Ecomode No
FCC Class A
Audible Noise -- dB
Lamp --
Lamp Life 4000 hours
Replacement Lamp
Included Accessories
Items Included EH340UST, AC power cord, remote control, batteries, USB Wi-Fi adapter, CD-ROM users manual, quick start guide and warranty card
Remote Control Yes
Carry Case No
Projector 3 Year parts and labor limited warranty, 1 year lamp warranty or 1000 hours(whichever comes first)
Lamp --

* -- indicates specification not published by manufacturer.


  • Download the manufacturer spec sheet for the Optoma EH340UST Ultra Short Throw 1080p Multimedia.