Mine works, and better than the Mapleshade Ionoclast IME.
Is it necessary? No one can answer that but you. Only you know to what extent static causes problems in your setup. I'm in New England, where static's often a problem, so for me it's useful.
Is it necessary? No one can answer that but you. Only you know to what extent static causes problems in your setup. I'm in New England, where static's often a problem, so for me it's useful.