World's First Tri-band Wall-Plug WiFi Range ExtenderNighthawk X4S Tri-band WiFi Range Extender with Patented FastLane3™ Technology boosts your home’s WiFi so you can now high speed Internet everywhere in your home. Unlike other extenders, the Nighthawk X4S keeps the same WiFi name and password you already have so you’ll enjoy seamless WiFi like never before. Go room-to-room while streaming video or on a video call without interruption or needing to restart. FastLane3 technology delivers up to 100% performance boost compared to typical extenders by creating a dedicated wireless link to your WiFi. Nighthawk Mesh technology powers the Nighthawk X4S to boost your existing WiFi with high-performance, seamless WiFi at the push of a button.