Optoma EH340UST

DLP Projector, 1080p, 4000 Lumens, D:W 0.25:1, 3-Year Warranty
Item #0601-3891 Model #EH340UST


Optoma EH340UST

Ultra Short Throw 1080p Multimedia Projector

  • Bright 4,000 lumens and 22,000:1 contrast ratio produce razor-sharp images
  • PC-free USB image viewer and office document reader
  • Wireless presentations and images with HDCast Pro (optional USB Wi-Fi adapter required)
  • 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
Spectacular 100" 1080p image from inches away

Enhance presentations and events with colorful and bright 4,000 lumens 1080p images from the Optoma EH340UST. Its 22,000:1 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 connectivity 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® (Digital Light Processing): 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 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.
  • Integrated PC-free USB image and document viewer: provides 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: takes control of the projector using HEX or ASCII commands via RS-232 cable.
  • 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.


Aspect Ratio 16:9 (native), 16:10 and 4:3 compatible
Audio 16-Watt Speaker
Brightness 4,000 ANSI lumens
Connections HDMI 1.4a (MHL 2.0), HDMI 1.4a, composite video in, audio-in (3.5 mm), VGA-in, VGA-out, audio-out (3.5 mm), RS-232C, RJ-45, USB port (Wi-Fi adapter), USB port (USB display/ PC-free/mouse/power)
Contrast Ratio 22,000:1
Display Technology Single Texas Instruments 0.65" 1080p DMD
Displayable Colors 1.07 billion
Image Size 80" – 100"
Light Source Type 240 W
Light Source Life 15,000/10,000/4,000 (Dynamic/Eco/Bright)
Lens Shift None
Maximum Resolution WUXGA (1920 x 1200)
Native Resolution 1080p (1920 x 1080)
Noise Level 25 dB (ECO)
Offset 119% ± 3%
Operating Temperature 41–104°F (5–40°C), 85% max humidity
Power Consumption 285 W (Bright), 205 W (ECO)
Power Supply Auto-ranging: 100 ~ 240 V ± 10%, 50  60 Hz
Projection Distance 6" – 9"
Projection Method Front, rear, ceiling mount, table top
Throw Ratio 0.25:1 (distance/width), ±5% Variance
Uniformity 80%
Zoom Type Fixed lens
3D Compatibility Supports all HDMI 1.4a mandatory 3D formats (frame pack, side-by-side, top-bottom) and up converts frame rate from 60 Hz to 120 Hz or 24 Hz to 144 Hz (i.e 60 or 72 frames per eye).
Computer Compatibility SVGA, VGA, SXGA, UXGA, XGA, WXGA, HD, Mac
Horizontal Scan Rate 15.375 – 91.146 KHz
Vertical Scan Rate 24 – 85 Hz (120 Hz for 3D)
Dimensions 13.5" x 4.75" x 15"
Security Kensington® Lock port, security bar and keypad lock
Weight 8.7 lbs
What's in the Box?
  • AC power cord
  • Remote control
  • 2x AAA batteries
  • Basic user manual
Optional Accessories Universal wall mount, remote, UHDCast Pro
UPC 796435444730
Warranty Info 3-year parts and labor limited warranty on the projector, 1-year lamp warranty or 1000 hours (whichever comes first)
Connections Control Complete on-screen menu adjustment in 18 languages
Video Input NTSC, PAL, SECAM, SDTV 480i/p, 576i/p, HDTV 720p(50/60 Hz), 1080i(50/60 Hz), 1080P(50/60 Hz)