HDMI switch and multi-viewer switcher. Should I buy a more functional device right away?, by teardownit 🛠️ 🔬 ✍️

4K HDMI Quad Multi-viewer 4x1, Yinker 4 in 1 Out HDMI Quad Switcher 1 to 4 Screen Multiviewer for 4K@60Hz, Supports Audio Extractor & Screen Rotation & 8 Display Modes PIP

4K HDMI Multi Viewer Switch 4x1, Quad Seamless HDMI Switcher, 4 in 1 Out with Loop Split Screen, 5 Display Modes, Support 4K@30Hz, with IR Remote, for Security Cameras, Monitors, Gaming

PCB Assembly Desktop Factory project. History and creation reasons., by teardownit 🛠️ 🔬 ✍️, Nov, 2023

HDMI switch and multi-viewer switcher. Should I buy a more functional device right away?, by teardownit 🛠️ 🔬 ✍️

4K HDMI Multi Viewer Switch 4x1, Quad Seamless HDMI Switcher, 4 in 1 Out with Loop Split Screen, 5 Display Modes, Support 4K@30Hz, with IR Remote, for Security Cameras, Monitors, Gaming

HDMI Multiviewer Switch 4x1,Tendak HDMI Quad Multi-Viewer with Seamless Switch, Split Screen,5 Display Modes,with IR Remote/Software/Push Button Selector for Security Camera, Gaming Consoles : Electronics

Hdmi Splitter VS Hdmi Matrix Switcher: Which Is Better For Multiple Monitors and TVs

How does the DC-DC converter work?, by teardownit 🛠️ 🔬 ✍️

HDMI Multiviewer Switch 4x1,Tendak HDMI Quad Multi-Viewer with Seamless Switch, Split Screen,5 Display Modes,with IR Remote/Software/Push Button Selector for Security Camera, Gaming Consoles : Electronics

HDMI Multiviewer Switch 4x1,Tendak HDMI Quad Multi-Viewer with Seamless Switch, Split Screen,5 Display Modes,with IR Remote/Software/Push Button Selector for Security Camera, Gaming Consoles : Electronics

HDMI Multi-Viewer Switch 4x1, HDMI Quad Seamless Switcher 4 in 1 Out Support 1080P@60Hz & 5 Display Mode, Split Screen for TV/PC/STB/DVD with IR Remote : Electronics