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31.5 inch 4K UHD ZeroFrame monitor with ultra thin matte screen and tilt stand

Acer America

Acer America AOPEN 31.5" 4K UHD ZeroFrame Monitor Accessory

SKU CH-XAC9-R2KAN

A 31.5 inch 4K UHD VA display with ZeroFrame design, AMD FreeSync, 60 Hz refresh, 4 ms response, HDR 10, tilt adjustment and DisplayPort 1.2 plus two HDMI 2.0 ports

  • 5 inch 4K UHD resolution delivers sharp detail at 3840 x 2160
  • ZeroFrame ultra-thin design maximises screen space with minimal bezel
  • AMD FreeSync technology synchronises refresh rate for smoother visuals
  • HDR 10 support expands contrast and colour range
  • Tilt adjustment from -5° to 15° plus VESA 75 x 75 mm mounting enables flexible positioning

31.5" 4K UHD ZeroFrame Monitor

The AOPEN 31.5 inch display delivers 4K UHD resolution at 3840 x 2160 on a VA panel with a matte finish. AMD FreeSync support and a 60Hz refresh rate suit everyday home and office tasks. The ZeroFrame design keeps bezels minimal for a clean look. HDR 10 compatibility adds contrast depth for supported content.

Compatibility Check

Verify your system can output 3840 x 2160 at 60Hz over DisplayPort 1.2 or HDMI 2.0 before ordering. Ensure your graphics driver is current for FreeSync operation. The stand provides tilt adjustment from -5° to 15°; confirm this range fits your viewing position. VESA mounting uses a 75 x 75mm pattern if you plan to use a monitor arm.

Upgrade Path

This monitor replaces smaller or lower-resolution screens where extra desktop space and 4K clarity improve productivity. The step up is worthwhile when moving from Full HD to 4K for text-heavy work or media consumption. It is not suited for buyers who need high refresh rates above 60Hz for competitive gaming or specialised colour-critical workflows requiring factory calibration.

Highlights

  • 5 inch 4K UHD resolution delivers sharp detail at 3840 x 2160
  • ZeroFrame ultra-thin design maximises screen space with minimal bezel
  • AMD FreeSync technology synchronises refresh rate for smoother visuals
  • HDR 10 support expands contrast and colour range
  • Tilt adjustment from -5° to 15° plus VESA 75 x 75 mm mounting enables flexible positioning

Specifications

No published specifications for this item yet.

Questions about this item

Does the AOPEN 31.5" 4K UHD monitor come with the cables I need, or must I buy a DisplayPort cable separately?

An HDMI 2.0 cable is included in the box; the DisplayPort 1.2 cable is not supplied and must be purchased separately if you plan to use that input.

Should I choose the HDMI 2.0 or DisplayPort 1.2 input to get the full 3840 x 2160 resolution at 60 Hz?

Both the two HDMI 2.0 ports and the single DisplayPort 1.2 port support 4K UHD at 60 Hz, so either interface will deliver the full 2160p resolution and refresh rate.

What does the 4 ms grey-to-grey response time mean for everyday office work and video playback on this VA panel?

The 4 ms G-to-G rating keeps motion blur low enough for smooth video playback and general productivity, while the 60 Hz refresh rate and AMD FreeSync prevent tearing during casual gaming.

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