Wi-Fi Extenders with a Double Socket or Passthrough Plug

Some models do, while many plug directly into the wall and cover the outlet. Check the exact product specification and photographs.

Only if the manufacturer allows it and the appliance stays within the stated electrical rating. Follow the product safety instructions.

The socket feature is about mains access; wireless performance depends on the radio specification, router connection and placement.

Check plug type, outlet arrangement, supported Wi-Fi bands and setup compatibility for your router.