Had to return this gizmo
I was hoping this device would give me better connection between my cable router and several devices using 802.11g. Only one plug near the devices would receive any signal, and that was slower than 802.11b. Other outlets were unable to connect. The only time I got anything approaching higher speeds was when I plugged the two Belkins into a single extension cable.
I'm in the US so I'm using 120V, 60Hz, but that shouldn't make a difference. Perhaps having Monster power conditioners plugged into the wiring caused the problem, but the earlier 100 MHz versions seems to work well in the same environment.
I ordered directly from Belkin, and to their credit, they accepted returns with no hassles. The CS staff was aware that the devices would not work well in some loations, but the only way to determine that is to buy them, plug them in, and see what happens.