At Seamaster we have developed the following mounting brackets for VESA to dampen screen vibrations:
HE 422i/o Optocoupler
Optocouplers are intended as an extra security, between e.g. a computer and other electronic equipment controlled by it.
Should the connected equipment emit an overvoltage back to the computer, the optocoupler inserted in the connection, will receive the overvoltage as a kind of fuse, which means that the computer is not exposed to the voltage and thereby be damaged.