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One unit covers about 1500 square feet. Perfect solution if you have large home and need a wireless mesh system. AC adapter included.

Tech Specs
Connectivity

Wireless
AC1200 2×2 Wave 2 Wi-Fi
Expandable mesh Wifi
Simultaneous dual-band Wifi (2.4 GHz/5 GHz) supporting IEEE 802.11a/b/g/n/ac
TX Beamforming
Bluetooth® Smart Ready

Ports
Two Gigabit Ethernet ports
WAN and LAN

Security

WPA2-PSK
Automatic security updates

Memory

512 MB RAM

4 GB eMMC flash storage

Processor

Quad-core ARM CPU – each core up to 710 MHz

Power

15 W power adaptor
~9 W consumed