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MAG 321CUP QD-OLED 31.5" 16:9 4K Ultra HD 165Hz Curved HDR Gaming Monitor, Metallic Black

Prices as of September 27, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Macy's price tracker

14-day low
$699.99
Sep 14 · Macy's
Best price
$714.99
−0% vs high
14-day high
$714.99
All stores
$715$707$700
Sep 14Sep 27
  • Macy's
Lowest in 14 days: $699.99 at Macy's. Highest: $714.99. Current best is 0% below the 14-day high.

About this product

The MSI MAG 321CUP QD-OLED is a 31.5-inch curved gaming monitor featuring a QD-OLED panel with 4K Ultra HD resolution, a 165Hz refresh rate, and a 0.03ms (GtG) response time. Designed for high-performance gaming, it supports Adaptive Sync to eliminate screen tearing and offers VESA DisplayHDR True Black 400 certification for deep blacks and vivid contrast. The monitor includes HDMI 2.1 ports for console compatibility, USB Type-C connectivity with up to 48Gbps bandwidth, and AI Vision technology to enhance visibility in dark scenes. It features fanless cooling via graphene film and a custom heatsink, along with eye protection through blue light reduction and anti-reflective coating. Built-in tools like Smart Crosshair and Optix Scope improve aiming precision, while OLED Care 2.0 helps prevent burn-in during extended use.

  • 31.5" QD-OLED panel
  • 4K Ultra HD resolution
  • 165Hz refresh rate
  • 0.03ms GtG response
  • HDMI 2.1 ports
  • fanless cooling design

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MAG 321CUP QD-OLED 31.5" 16:9 4K Ultra HD — Price History