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A white 31.5 inch 4K monitor on a silver Ergo Arm stand

BenQ

BenQ RD320UA-R 31.5" 4K monitor with Ergo Arm

SKU CH-RJ69-4JHDG MPN RD320UA-R

A 31.5" 4K IPS monitor with 400 nits brightness, 2000:1 contrast, USB-C 90W power delivery, KVM switch, and an included Ergo Arm for flexible positioning

  • Display Colors1.07 Billion
  • Screen Size31.5"
  • Response Time5 ms
  • Brightness400 cd/m2
  • Contrast Ratio2000:1
  • Aspect Ratio16:9
  • Sharp 4K code view on 31.5" 3840 x 2160 IPS
  • Deep contrast for dark themes at 2000:1 static ratio
  • Bright HDR10 highlights at 400 nits with 1.07 billion colours
  • Ergonomic Ergo Arm included for flexible desk positioning
  • USB-C 90W daisy-chain plus KVM streamlines multi-device workflow

31.5" 4K IPS panel with Ergo Arm

This 31.5 inch monitor uses an IPS panel at 3840 x 2160 resolution and a 16:9 aspect ratio. It reaches 400 nits brightness with a 2000:1 static contrast ratio and 1.07 billion colours with HDR10 support. The 5 ms grey-to-grey response time and 60 Hz refresh rate suit coding and general desktop work. The package includes the Ergo Arm stand for flexible positioning.

Suited for programmers and multi-taskers.

Coding modes and Display Pilot 2 software help developers arrange code windows and reduce eye strain. USB-C daisy-chain support and a built-in KVM simplify two-system setups with a single keyboard and mouse. Integrated lighting adds ambient bias illumination. Competitive gamers who need refresh rates above 60 Hz or adaptive-sync certification should look elsewhere.

90 W USB-C power delivery decides single-cable

The USB-C port supplies up to 90 W of power while carrying video and data, letting many modern laptops run and charge through one cable. HDMI and DisplayPort inputs are also available for additional devices. VESA 100 x 100 mm mounting holes remain accessible if the Ergo Arm is removed.

Helstu kostir

  • Sharp 4K code view on 31.5" 3840 x 2160 IPS
  • Deep contrast for dark themes at 2000:1 static ratio
  • Bright HDR10 highlights at 400 nits with 1.07 billion colours
  • Ergonomic Ergo Arm included for flexible desk positioning
  • USB-C 90W daisy-chain plus KVM streamlines multi-device workflow

Tæknilýsing

Display Colors1.07 Billion
Screen Size31.5"
Response Time5 ms
Brightness400 cd/m2
Contrast Ratio2000:1
Aspect Ratio16:9
Viewing Angle178° (H) / 178° (V)
BrandBenQ
ModelRD320UA
Cabinet ColorWhite
Part NumberRD320UA-R
Built-in SpeakersN/A
VESA Compatibility - Mountable100 x 100 mm
Thunderbolt 2N/A
Sendingarþyngd10.98 kg
Stærð sendingar714 × 602 × 478 mm

Spurningar um þessa vöru

Does the monitor need a separate VESA mount or is the Ergo Arm included?

The Ergo Arm is included and attaches to the 100 x 100 mm VESA pattern on the back of the 31.5" panel.

Can I run the 3840 x 2160 60 Hz signal over HDMI and DisplayPort at the same time for a dual-PC KVM setup?

Yes, the KVM switches between the HDMI and DisplayPort inputs while the USB 3.2 Gen 2 hub stays connected to the active system.

How do I confirm the USB-C daisy chain is delivering 90 W to my laptop?

The Display Pilot 2 software reports the active power delivery and shows the 400 nits HDR10 mode when the chain is working.

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