- Does it need a cord or battery?
- No. It plugs directly into a wall outlet and draws power from it.
- Can I use all four USB ports at once?
- Yes, but the ports share a total output, so charging slows when several devices are connected together.
- Will it fit a standard US outlet?
- It is designed for standard US wall outlets and mounts over the existing cover plate.
- Does it protect against power surges?
- It has built-in surge protection, though with less capacity than a full-size surge protector.
- Can I still use the other wall socket?
- The unit covers the second socket of a duplex outlet, so that socket is not usable while it is installed.
- Where is the Tessan Multi Plug Wall Outlet Extender 4 USB Ports cheapest?
- At Best Buy, for $20.12, as of our latest check.