Linksys RE3000W N300 Wi-Fi Range Extender - (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty Universal Compatibility: Wireless-N technology is compatible with all a/b/g/n devices Works with any router or gateway including routers supplied by a service provider Easy Setup: Installation wizard provides easy installation and directs optimal placement Push-Button Security WPS makes adding devices simple and secure