Linksys RE4000W N600 PRO Wi-Fi Range Extender (RE4000W) 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 Simultaneous Dual Band: 2.4 and 5 GHz bands reduce traffic and maximize speed. Up to 300Mbps data transfer on each band Cross-Band Technology maximizes the simultaneous use of both bands for faster data transfer speeds QoS prioritizes bandwidth for smoother media streaming 2 Fast Ethernet Ports extend the range for two wired devices Easy Setup: Installation wizard provides easy installation and directs optimal placement Push-Button Security WPS makes adding devices simple and secure QoS prioritizes bandwidth for smoother media streaming A firmware update will release soon to enable full compatibility with OS X 10.9 or higher