The HDMI sync box with light strip supports video resolution up to 4K, refresh rate up to 60 Hz. HDR10 and HDR10+/Dolby Vision.

The HDMI sync box 2.1 with light strip supports video resolution up to 8K, refresh rate up to 120Hz. HDR 10 and HDR10+/Dolby Vision.

It does NOT support 2560x1440 resolution.