PS5 Display Resolutions, 4K, HDMI 2.1, and HDMI 2.0 | BenQ Asia Pacific
PS5 now supports 1080p 120Hz monitors, still no 1440p output
How to Enable 120Hz on the PS5 - Complete Guide
Amazon.com: 4K@60Hz/1080p@120Hz HDMI 2.0 Splitter 1 in 2 Out, Auto Downscaler with HDR10 &3D, 18Gbps Zero Latency, AV Access Gaming Splitter, Duplicate/Mirror Screens, HDCP 2.2, for Xbox, PS5 : Electronics