Call a Specialist Today! 855-958-0757

BenQ MX823ST
More Interaction, Less Energy Use

BenQ MX823ST

MX823ST XGA 3200 ANSI Lumens Short Throw HDMI & MHL

Get a Quote!


A wide array of connectivity options plus *PointWrite™ and QWrite interactive features make the MX823ST a complete classroom interactive projector solution. A short-throw ratio, 13000:1 ultra-sharp contrast ratio, 3200 ANSI lumen brightness and long lamp life ensure vibrant, reliable visual performance time and again.
*PointDraw is not included and is sold separately.

Key Features

  • World-Leading SmartEco Technology
  • LampSave Mode for Lower Replacement Cost
  • Short-Throw Projection
  • LAN Control with Crestron and PJ-Link
  • MHL Connectivity

BenQ MX823ST


Power Saving , Eco Friendly

World-Leading SmartEco Technology for a Greener Environment

As the first DLP brand to incorporate Philips' ImageCare technology into its projector lamp system, BenQ has taken a further leap, developing its own SmartEco Technology to perfect what DLP can do for energy saving in the 21st century classroom. Built with this brand new invention, the MX823ST brings together uncompromised brightness, exquisite picture quality and optimized lamp life through innovative features.

MX823ST World-Leading SmartEco Technology for a Greener Environment

SmartEco Mode

The SmartEco Mode, which cleverly adjusts the lamp power to maximize power saving by delivering the best contrast and brightness performance using only as much light as needed.

MX823ST SmartEco Mode

Normal Mode
296W Projector Power
Consumption by Average

MX823ST SmartEco Mode

SmartEco Mode
Enhanced Details in Darkened Scenes
163W Projector Power Consumption by

(Source: 2010 Philips white paper.

LampSave Mode

Projector lamp replacement costs make up the biggest part of the total cost of projector ownership. The LampSave Mode is designed to adjust the lamp power dynamically by content brightness level to extend projector lamp life significantly by 50%! The lamp replacement frequency is also reduced by up to 50% to lower the replacement costs.

MX823ST LampSave Mode

LumenCare Mode

The LumenCare Mode, which adjusts projector lamp power in gain steps until full power is reached, effectively maximizes power saving and reduces brightness decay. It's the first and only projection feature on market that ensures three years of consistent image brightness for optimal learning and teaching.

Eco Blank Mode

The Eco Blank mode allows teachers to blank the projection screen whenever they need to direct their students' focus back on them – or simply when the projector is not in use. When activated, this special feature dims the lamp power automatically, lowering the total power consumption by 70%.

MX823ST Eco Blank Mode

Full Power On
100% Lamp Power
Attention on the Projection Screen

MX823ST Eco Blank Mode

Eco Blank Mode On
30% Lamp Power at the Lowest
Attention on the Class Instructor

No Source Detected Mode

The automatic switch to Eco Blank Mode after the projector is turned on for over three minutes without a display source, eliminating unnecessary energy waste and prolonging the life of the projector lamp.

MX823ST No Source Detected Mode

Source Detected
100% Lamp Power

MX823ST No Source Detected Mode

No Source Detected
30% Lamp Power

Good Things Come in Short Distance Zero Eye-Blinding Lights

The short-throw projection distance keeps the projector light from shining directly into your eyes, allowing you to keep your focus on your audience.

Zero Disruptions

Say goodbye to the shadows that often interrupt your presentation. With a projection distance this close, you and your audience can move freely without worrying about obstructions between the projector and the screen!

MX823ST Zero Disruptions

Interactive Learning with BenQ's Leading Technology

*PointWrite™ Technology
Allows More Students Participation at Once

Keeping students involved and engaged is a central practice in the BenQ Classroom IQ concept-and PointWrite™ is a great way to let multiple students contribute at once. Teachers can get up to 4 students to come up to the board and collaborate simultaneously with PointWrite™ pens. Quizzes, board work, presentations and games will never be the same! PointWrite™ is effortless to set up and cost efficient, making it flexible, affordable option of multi-pens.
*PointWrite is not included and is sold separately.

MX823ST *PointWrite™ Technology

Thoughtful Design MHL Connectivity

With MHL connectivity, you can share your content from your Android devices on big screen. MX823ST features MHL function and allows you to mirror the data, photo and other contents from your android devices to big screen, Also, your device is being charged while you're using it, you don't have to worry about the power while presenting.

MX823ST Thoughtful Design MHL Connectivity

MX823ST Thoughtful Design MHL Connectivity

Blu-ray Full HD 3D Supported

BenQ MX823ST is built with latest DLP® technology to support 3D functionality, allowing schools to bring an immersive learning experience to their students with a simple preparation of 3D glasses and 3D content from your blu-ray player.

MX823ST Blu-ray Full HD 3D Supported

Hassle-Free Projector Maintenance Upper Lamp Door for Easy Lamp Access

The upper lamp door is designed for it managers to replace the projector lamp safely and quickly. should the projector lamp go out in the middle of the class, it can be replaced without delaying the class.

MX823ST Hassle-Free Projector Maintenance Upper Lamp Door for Easy Lamp Access

LAN Control with Crestron and PJ-Link

LAN Control is designed to help IT managers perform day-to-day projector maintenance and repair tasks efficiently and effectively – offering them full access and control over every projector directly from their workstations. The MX823ST offers seamless support for the Crestron and PJ-Link LAN Control system.

MX823ST LAN Control with Crestron and PJ-Link

Quick Installation

By pressing Quick Intall key on the remote control, installer can quickly access to installation related functions in the OSD menu.

MX823ST Quick Installation

ecoFACTS Label

ecoFACTS can tell you how eco-friendly BenQ products are!

Development of eco-friendly products, BenQ doesn't just want to comply with green regulations passively, but also to actively develop eco-friendly products!

ecoFACTS declares BenQ's greatest efforts on the replacement of hazardous substances, material selection, packaging design, energy-saving design and other aspects of the products.

MX823ST ecoFACTS Label


BenQ MX823ST Specifications

  1. RS232 (DB-9pin)
  2. LAN (RJ45)
  3. USB (Mini-B)
  5. Monitor Out (D-sub 15pin)
  6. Computer-1/2 (D-sub 15pin)
  7. S-Video (Mini DIN 4-pin)
  8. CompositeVideo in
  9. Audio L/R In (RCA)
  10. Audio In 1&2 (Mini Jack)
  11. Audio Out (Mini Jack)
BenQ MX823ST Specifications
Projection System DLP
Native Resolution XGA(1024 X 768)
Brightness* (ANSI Lumens) 3200AL
Contrast Ratio 13000:1
Display Color 1.07 Billion Colors
Lens F=2.6 f=6.9mm
Aspect Ratio Native 4:3 (5 aspect ratio selectable)
Throw Ratio 0.61 (78"@0.96m)
Image Size (Diagonal) Optimization 60"-129", Maximum 300"
Zoom Ratio Fixed
Lamp Type 210W
Keystone Adjustment 1D, Vertical ± 30 degrees
Projection Offset 130% ±5%
Resolution Support VGA(640 x 480) to UXGA(1600 x 1200)
Horizontal Frequency 15-102KHz
Vertical Scan Rate 23-120Hz
Interface Computer in (D-sub 15pin) x 2 (Share with component)
Monitor out (D-sub 15pin) x 1
Composite Video in (RCA) x 1
S-Video in (Mini DIN 4pin) x 1
HDMI x 1 (Share with MHL 1.2)
Audio in (Mini Jack) x 2
Audio out (Mini Jack) x 1
Audio L/R in (RCA) x 1
Speaker x 1 (10W)
USB (Type Mini B) x 1
RS232 (DB-9pin) x 1
LAN (RJ45) x 1
Dimensions (W x H x D mm) 287.3 x 114.4 x 232.6 mm

MX823ST Dimensions
HDTV Compatibility 480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Video Compatibility NTSC, PAL, SECAM
3D Support and Compatibility Frame Sequential: Up to 720p
Frame Packing: Up to 1080p
Side by Side: Up to 1080i/p
Top Bottom: Up to 1080p
Weight 2.6kg(5.73bs)
Audible Noise (Normal/Economic Mode) 33/28 dBA
Power Supply AC100 to 240 V, 50 to 60 Hz
Power Consumption Normal 290W, Eco 240W
On-Screen Display Languages Arabic/Bulgarian/ Croatian/ Czech/ Danish/ Dutch/ English/ Finnish/ French/ German/ Greek/ Hindi/ Hungarian/ Italian/ Indonesian/ Japanese/ Korean/ Norwegian/ Polish/ Portuguese/ Romanian/ Russian/ Simplified Chinese/Spanish/ Swedish/ Turkish/ Thai/ Traditional Chinese (28 Languages)
Picture Modes Dynamic/Presentation/sRGB/Cinema/(3D)/User 1/User 2
Accessories (Standard) Lens Cover
Remote Control w/ Battery
Power Cord (by region)
User Manual CD
Quick Start Guide
Warranty Card (by region)
VGA (D-sub 15pin) Cable
Accessories (Optional) PointWrite
Spare Lamp Kit
Ceilling Mount
Wall Mount
Carry bag
3D Glasses

Distance Chart:

MX823ST Distance Chart

(a) Screen Size (b) Distance from screen
(c) Vertical offset
Diagonal W (inch) H (inch)
Inch mm
80 2032 64 48 38.8 7.2
100 2540 80 60 48.6 9.0
120 3048 96 72 58.3 10.7
150 3810 120 90 72.9 13.5
180 4572 144 108 87.4 16.2
200 5080 160 120 97.2 17.9
220 5588 176 132 106.9 19.8
240 6096 192 144 116.6 21.6
270 6858 216 162 131.2 24.2
300 7620 240 180 145.8 27.0

Ceiling Mount Chart:

MX823ST Ceiling Mount Chart

Units: inch


Download the BenQ MX823ST Data Sheet (PDF).

Pricing Notes:

BenQ Products
MX823ST XGA 3200 ANSI Lumens Short Throw HDMI & MHL
Get a Quote!