I saw that, but wondered if it applied to extension cords as well. The question is becoming moot, however, because I'm in the process of plugging the adapters into the outlets and the additional power outlets into the adapter. I decided not to use a power strip for the additional outlets because I have some 6-outlet surge protecting devices on hand. I hadn't known about the utility until you mentioned it, and I found the link on the outside of the box. Some of us need more hand-holding than others . . .