They can be used as a replacement screen for a home based laptop. Always handy.
I have seen them used as a secondary entertainment setup using a computer with surround sound.
Security monitoring, better to burn out 4-6 monitors screens from screen burn, than burn squares on a big flatscreen.
Its handy having two screens in a computer.
Ryanw is correct, sometimes they are 12 volt & useable in vehicles & RV's.
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