99% of the surge suppressors you can buy at stores are useless crap that simply use a $0.29 MOV to shunt a voltage spike. they will do NOTHING to stop most real problems that come in on data lines and NOT power. Those things are designed to stop surges from your vacuum cleaner, your furnace and AC, and the industrial building down the street.
We have customers whine every thunderstorm asking why did their $9.95 surge suppressor not stop lightning damage... It cant, in fact you can not buy anything on this planet that can stop a close or direct lightning hit.
I have seen lightning blow up electronics that were unplugged and sitting in the cardboard box. getting a hard strike 8 feet from the south wall where all the gear was going to be installed. Every single device was fried when we opened the boxes and hooked it up.