Elgato Game Capture 4K60 S+ can record video sources that use the following resolutions:

480p
720 by 480 resolution, at 60 FPS

576p
720 by 576 resolution, at 50 FPS

720p
1280 by 720 resolution, at 30 FPS or 60 FPS

1080p
1920 by 1080 resolution, at 30 FPS or 60 FPS

2160p
3840 by 2160 resolution, at 30 FPS or 60 FPS

1440p Capture is not Supported

Input and capture of 2560x1440 (1440p) is not supported.

HDR

Elgato Game Capture 4K60 S+ can capture the HDR10 format. 

Other HDR formats such as Dolby Vision, HDR10+ and HLG are not supported. 

High Frame Rates and High Refresh Rates are not Supported

Frame rates higher than 60 fps, and refresh rates higher than 60 Hz, are not supported by Elgato Game Capture 4K60 S+