what is a hdmi switch, full hd and 4k ultra hd
5x1 HDMI SWITCH, 4K Ultra HD, Remote, No External Power, 3D

What is a HDMI Switch? (also called a HDMI Switcher)

For a general description [click here]

hdmi splitter full hd and 4k ultra hd
HDMI splitter 4K, 1 input 2 outputs

What is a HDMI Splitter? 

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hdmi extender full hd and 4k ultra hd
HDMI Extender Balun (pair), Full HD,120M, CAT, IP & IR Source Support.

What is a HDMI Extender? (also called a Balun Extender)

For a general description [click here]

hdmi matrix full hd and 4k ultra hd
4X4 HDMI Matrix Extender True v2, Full HD, 60M, IR Source Support.

What is a HDMI Matrix? (also called a True Matrix Extender)

For a general description [click here]

hdmi to av vga rca audio extractor full hd and 4k ultra hd
HDMI to AV mini Converter (Video and Stereo Audio)

What is a HDMI Signal Converter? 

For a general description [click here]