The ASUS ROG Strix XG27AQDMGR OLED monitor is down to $384, its lowest price yet.
The 27-inch 1440p WOLED panel runs at a 240Hz refresh rate with a 0.03ms response time and peak brightness of 1,300 nits. It supports AMD FreeSync Premium Pro, is NVIDIA G-SYNC compatible, meets VESA DisplayHDR 400 True Black standards, and covers 99% of the DCI-P3 color gamut. The monitor normally sells for $599 and dipped to $399 during Prime Big Deal Days; it has since fallen further to $384 at Amazon, a $215 cut from list.
OLED panels still carry a burn-in reputation that keeps some buyers on LCD. ASUS's built-in Neo Proximity Sensor and OLED Care Pro settings are mitigations, not guarantees, but they lower the risk calculus for anyone eyeing a 240Hz OLED upgrade under $400.
A sub-$400 240Hz OLED monitor was a rare find even during the actual Prime Day sales window, let alone after it closed.