To pick the best Wi-Fi extender to work with any router, keep in the mind the following aspects: Frequency (Single 2.4GHz or Dual Band 2.4GHz and 5GHz support), Standards Compatibility (IEEE 802.11 a/b/g/n orIEEE 802.11 b/g/n orIEEE 802.11 a/b/g/n/ac compliant), Profile (Desktop or Plug based, no external antenna, dual antenna or more), Security (WPA2-PSK security protocol), Manufacturer, Cost, Ports (availability of ethernet port for wired connection) and Performance.