BenQ MOBIUZ EX321UX 31.5" 4K UHD 144Hz Mini LED Gaming Monitor

BenQSKU: EX321UX
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Need this as part of a larger AV project? AVENDOR can help with sourcing, installation, support, and monthly payment options

Description

The BenQ MOBIUZ EX321UX is a premium 31.5-inch 4K UHD gaming monitor engineered for competitive performance and cinematic immersion. Powered by advanced 1152-zone Mini LED backlight technology, it delivers extraordinary contrast, ultra-precise local dimming, and breathtaking HDR highlights up to 1000 nits.

With a 144Hz refresh rate and ultra-fast 1ms response time, the EX321UX ensures smooth, blur-free gameplay with crisp detail in fast-moving scenes. VESA DisplayHDR 1000 certification and HDR10 support elevate every frame with vibrant highlights and deep blacks, while 99% Adobe RGB and 99% DCI-P3 color coverage provide professional-grade color accuracy.

Designed for gamers, creators, and hybrid workspaces alike, the EX321UX features HDMI 2.1, DisplayPort 2.1, USB-C with 65W power delivery, and an integrated KVM switch for seamless multi-device control. BenQ’s HDRi technology intelligently optimizes contrast and clarity in real time, while built-in Eye Care technologies protect your vision during extended sessions.

Experience uncompromising performance, stunning visuals, and versatile connectivity in one powerful 4K display.

Specification Details
Model EX321UX
Screen Size 31.5 inches
Panel Type IPS
Backlight Technology Mini LED (1152-zone local dimming)
Resolution 3840 x 2160 (4K UHD)
Refresh Rate 144 Hz
Response Time 1 ms (GtG)
Brightness (Typical) 700 nits
Brightness (Peak HDR) 1000 nits
HDR Support HDR10, VESA DisplayHDR 1000
Color Gamut 99% Adobe RGB, 99% DCI-P3
Display Colors 1.07 Billion Colors
Contrast Ratio 1000:1
Viewing Angle 178° / 178°
Aspect Ratio 16:9
Pixel Density 138 PPI
HDMI 2 x HDMI 2.1, 1 x HDMI 2.1 eARC
DisplayPort 1 x DisplayPort 2.1
USB-C 1 x USB-C (65W PD, DP Alt Mode, Data)
USB Ports 3 x USB-A, 1 x USB-C Downstream
KVM Switch Integrated
Audio Headphone Jack
Eye Care Flicker-Free, Low Blue Light, B.I.+ Gen2
Stand Adjustments Tilt, Swivel, Height Adjustable (100mm)
VESA Mount 100 x 100 mm
Dimensions (with stand) 598.7 x 714.4 x 306 mm
Weight (with stand) 9.7 kg
Power Consumption (Normal) 80 W
Power Delivery 65W via USB-C
Included Accessories HDMI cable, USB 3.2 cable, USB-C cable, Remote, Calibration Report

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Your payment information is processed securely, and we do not store credit card details or access your credit card information.

Return Policy (Short Summary)

We offer a 30-day return window for most unopened, factory-sealed items.

Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.


Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.


For damaged or incorrect items, please contact us immediately.


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Projects Delivered
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From Scope to Sign-Off

A structured delivery process designed to reduce risk and keep projects moving.

01

Plan

Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.

  • Discovery calls & stakeholder interviews
  • On-site survey & infrastructure review
  • Requirements & use-case documentation
  • Project scope, timeline & milestone alignment
02

Engineer

System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.

  • AV system design & signal flow diagrams
  • Equipment selection & BOM development
  • Rack layout & control system design
  • As-built documentation package
03

Deploy

Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.

  • Authorized procurement & logistics coordination
  • Physical installation & cable management
  • Control system programming & configuration
  • Commissioning, testing & end-user training
04

Support

Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.

  • 24/7 remote system monitoring
  • Preventive & reactive maintenance
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