Original NETGEAR 12V 3.5A 42W Power Adapter AC Charger for Model R6700 R7800 R7800 Product AC1750 AC2600 Nighthawk X4S Smart WiFi Gaming Router - Walmart.com
Netgear Nighthawk X4S Review
Best Buy: NETGEAR Nighthawk X4S Wireless-AC Dual-Band Wi-Fi Router Black R7800-100NAS