31.5-inch OLED monitor delivering immersive large-screen visuals, ultra-fast response times, and premium gaming and entertainment performance.Koorui S3241XO 31.5" OLED Black Monitor (3840x2160/0.03ms/2xHDMI/DisplayPort/USB-C).Large 31.5-inch OLED screen with stunning visual clarity.Ultra-fast response performance for gaming enthusiasts.Delivers deep blacks and cinematic HDR visuals.