Surge Suppressor Considerations
Surge suppressors are grounded so they dump excess voltage to ground.
Dumping excess voltage can be dangerous to computers if the voltage is dumped near unprotected devices.
Excess voltage increases the potential relative to the unprotected devices and causes electricity to flow (ground loop).
You must therefore protect all devices with surge suppressors.
It is best to put a large surge suppressor at the power distribution panel instead of selectively protecting devices with smaller cheaper surge suppressors.
This is more expensive but this protects all devices equally.