Tired of wi-fi ’’dead zone’’? tp-link’s range extender connects to your router wirelessly, strengthening and expanding its signal into areas it can’t on its own. the device also reduces signal interference to ensure reliable wi-fi coverage throughout your home or office.the tl-wa850re’s single ethernet port allows the extender to function as a wireless adapter to connect wired devices like blu-ray® players, gaming consoles, dvrs and internet tvs. at the same time, the device can share the wireless network as well.