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Optoma UHD51A 3D 4K Projector Projector

Part #: OPTUHD51A  |   Mfg #: UHD51A
Optoma UHD51A 3D 4K Projector Projector Optoma UHD51A 3D 4K Projector Projector Optoma mpn:UHD51A
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Home theater projector
Home theater projector

Optoma UHD51A 3D 4K Projector

Take control of your home theater via voice commands with the Amazon Alexa Enabled, 4K UHD 2,400 lumen Optoma UHD51A smart projector. Integrated smart home and custom skills enables easy integration into your Amazon Alexa-powered home for seamless voice control.

It utilizes the latest Texas Instruments 4K UHD DLP chipset capable of displaying 8.3-million simultaneous distinct pixels at screen sizes 140-inches and higher. High Dynamic Range (HDR) compatibility and wide color gamut guarantee rich life-like color and contrast for immersive home cinema experiences.

How to setup the UHD51A with Google Assistant:

A pair of HDMI 2.0 inputs with HDCP 2.2 support ensures compatibility with the latest devices and game consoles. A 1.3x optical zoom and 15% vertical lens shift provide installation flexibility.


  • Alexa smart home and custom skills ready
  • 4K UHD and bright 2,400 lumens with RGBRGB color wheel
  • HDR10 support for brighter whites, deeper black-levels and vivid colors
  • Dynamic Black delivers 500,000:1 contrast ratio for exceptional black levels
  • HDMI 2.0 with HDCP 2.2 connectivity ensures compatibility with 4K UHD video sources
  • Vertical lens shift and 1.3x zoom for easy and flexible installation
Click on a spec (like Resolution:) to learn more about it. Click here for the complete glossary.
Image Quality Projector Calculator See Optoma UHD51A 3D 4K Projector Image Size Calculator »
Resolution QFHD (3840 x 2160)
Brightness 2400 lumens
Contrast Ratio 500000:1
Uniformity 80%
No. of Colors Full Color
Aspect Ratio(s) Native - 16:9
Other(s) - 4:3 and LBX compatible
Display Type DLP (1 chip);
Data Signals 4K UHD (3840 x 2160)
Video Signals 4K UHD 2160p (24/50/60Hz), 1080p (24/50/60Hz), 1080i (50/60Hz), 720p (50/60Hz), 480i/p, 576i/p
H Sync --
V Sync --
3D Ready Yes
Dot Clock --
Inputs / Outputs
  • HDMI (High-Definition Multimedia Interface for digital video and digital audio)
  • HDMI 2.0 (High-Definition Multimedia Interface, version 2.0 with increased bandwidth)
  • Multi-HDMI (Multiple HDMI connectors)
  • Screen Trigger (12V) (DC power outlet)
  • Ethernet/RJ45 (Network addressable, RJ45)
  • USB
  • VGA (Analog data, mini D-Sub 15-pin)
  • RS-232 (Serial)
Call the projector experts at 1-888-248-0675 for more information
Built-in Audio 2x5W speakers (stereo)
Projection Lens Projector Calculator See Optoma UHD51A 3D 4K Projector Image Size Calculator »
Lens Projection Lens: F=2.5~ 3.26, f=20.91 ~ 32.62 mm manual focus Optical Zoom: 1.3x Digital Zoom: 0.8 - 2.0
Throw Ratio 1.21 - 1.59:1
Keystone Corr. --
Lens Shift 15% offset (with tolerance +/- 5%)
Proj. Methods Ceiling, Desktop, Front, Rear
Dimensions 15.4" x 11.1" x 5.1" (W x H x D)
Unit Weight 11.75 lbs.
Power Supply AC input 100�240V, 50�60Hz, auto-switching
Universal Power Supply
Power Consumption 317
Ecomode Yes
(Brightness: 1920 lumens; Lamp life: 10000 hours; Power: 348; Noise: 25 dB)
FCC Class A
Audible Noise 28.0 dB
Lamp --
Lamp Life 4000 hours
Replacement Lamp
OPTBLFP240E, $249.00     
Included Accessories
Items Included Lens cap, AC power cord, HDMI cable, remote control, batteries for remote, WUSB Wi-Fi adapter (for Alexa Wi-Fi or wireless screen mirroring), multilingual CD-ROM, user�s manual, quick start guide and warranty card
Remote Control Yes
Carry Case No
Projector 2-year limited warranty
Lamp 90 days

* -- indicates specification not published by manufacturer.


  • Download the manufacturer spec sheet for the Optoma UHD51A 3D 4K Projector.