Skip to content
Phone: (888) 282-1350 - Email:
Phone: (888) 282-1350 - Email:

Optoma UHD51A - 3D 4K DLP Projector - 2400 Lumens - Black

by Optoma
Save 10% Save 10%
Original price $1,979.00
Original price $1,979.00 - Original price $1,979.00
Original price $1,979.00
Current price $1,780.00
$1,780.00 - $1,780.00
Current price $1,780.00
  • Key Features
    • Brightness of 2400 ANSI Lumens
    • UHD 4K 3840 x 2160 On-Screen Resolution
    • HDR10-Compatible
    • 1.3x Zoom and 1.21 to 1.59:1 Throw Ratio

Optoma UHD51A 4K Projector with Alexa smart home


Take control of your home theater with voice commands. With the Alexa smart home and custom skills or Google Actions, control your 4K UHD 2,400 lumen Optoma UHD51A projector with intuitive voice control and easy integration using Amazon Echo and Google Home devices.

Use voice commands to power theprojector on and off, change volume,change input source and control the USBmedia player. Additionally, the UHD51Autilizes the latest Texas Instruments 4KUHD DLP chipset capable of displaying8.3-million simultaneous distinct pixels atscreen sizes 140 inches and higher.


Key Features

  • Works with Amazon Alexa and Google Assistant
  • 4K UHD, bright 2,400 lumens and RGBRGBcolor wheel
  • HDR10 support for brighter whites, deeper black levels andvivid colors
  • 4K video playback with the integrated USBmedia player
  • 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 installation
  • Manual
  • Datasheet
  • Throw Distance Calculator

Item Includes

  • Optoma Technology UHD51A HDR XPR UHD DLP Home Theater Projector

  • Remote Control with Batteries

  • Lens Cap

  • HDMI Cable

  • Wireless USB Adapter for Alexa or Screen Mirroring

  • Power Cord

  • Limited 2-Year Warranty

  • Limited 90-Day Warranty


  • Optoma Technology UHD51ASpecs

    Input/Output Connectors
    Inputs/Outputs1 xEthernet(RJ45) LAN
    1 xRS-232(DE-9/DB-9) Control Input
    2 xHDMI 2.0(HDMI Type-A) Video Input
    1 xVGA(DE-15/DB-15) Video Input
    1 x12 V Trigger Control Output
    1 x1/8" / 3.5 mm Mini Audio Input
    1 x1/8" / 3.5 mm Mini Audio Output
    1 xUSB 2.0(USB Type-A) Data Input
    1 xUSB 2.0(USB Type-A) Data Input
    1 xUSB 2.0(USB Type-A) Service Input
    Packaging Info
    Package Weight15.5 lb
    Box Dimensions (LxWxH)20.5 x 15 x 8"

    Take control of your home theater via voice commands using Alexa or Google Assistant. With smart home skills, control your 4K UHD 2, 400 lumen Optima UHD51A projector with intuitive voice control and easy integration with Echo or Google Home devices.


    • COMPATIBLE WITH ALEXA & GOOGLE ASSISTANT: With Echo devices or Google Home, take control of the UHD51A with voice commands to power on/off, adjust volume, change inputs, and control USB media playback
    • TRUE 4K ULTRA HD: Experience high-quality home cinema feel with 4K Ultra HD with 8. 3 million distinct addressable on-screen pixels, enabled by the Texas Instruments 4K UHD DLP chipset
    • HDR COMPATIBLE: HDR10 technology with DCI-P3 wide color gamut support displays everything in the REC. 2020 colors to match television and film quality; also providing brighter whites, deeper blacks, and greater color depth
    • ULTRA-SHARP PICTURE: Ultra Detail technology ensures enhanced image sharpness with a higher frame rate to deliver a crystal clear picture
    • FLEXIBLE INSTALLATION: Whether ceiling mounted or placed on a table, get your picture just right with 1. 3x manual and 0. 8 2. 0 digital zoom, 1. 21 1. 59, +10% throw ratio, vertical lens shift and keystone correction
    • 4K UHD GAMING-READY WITH HDR: Connect with the latest consoles and gaming PCs for an immersive experience
    • LONG LAMP LIFE: Enjoy up to 15, 000 hours of lamp life enabling an average of 4 hours of viewing time every day for 10+ years