Leave it to you, Carl, to direct us to a source for that item can't get along without - a ferrite core noise suppresser for our power cords. At 88 cents is it real cheap snake oil?
Give it a cool marketing name, put it in a walnut fancy box, lable it with images of some weird stuff, bet certain companies could get hundreds for it...And of course they would have documents to back up all their research and tests. Parts Express has lotsa great stuff, major brands, priced right. Middle Atlantic rack products, FurmanSound, all kinds of wires and more wires, without the fancy titles and "research" behind it. ie. "RESEARCH" is code for marketing depts' nice full page ads of things that mean nothing. What is this month's reptile or geographic cable?
gripe, gripe, gripe.