TERK WF-D Directional WiFi Antenna Increases the effective range of your router and allows you to have wireless service wherever you need it Better wireless reception with faster Internet speeds and increased transit rates Easy installation with wall or surface mount options simply replaces your existing antenna Dual band works with 2.4 GHZ or 5.8 GHZ systems with multi-band for 802.11 a b g n routers or Apple Airport Gold connectors for best signal and comes with TNC SMA adapter for maximum flexibility