HDMI input ports and 1 HDMI output port.
Resolution Support:
Many splitters support 4K (or 4K with HDMI 2.1), and some even support 8K resolutions.
HDMI Version:
HDMI 2.0 or 2.1 for higher bandwidth and better support for newer resolutions and refresh rates.
Switching:
Manual button switching or automatic switching based on the input source being active.
Audio Support:
Typically supports various audio formats, including Dolby Atmos and DTS.
HDCP