It's amazing how the level can increase by having a well-positioned directional antenna. I spend 2 to 5 bars of reception with the same router. Excellent price / quality ratio. SMA output, so it can connect directly to the router without specific adapter. (Beware the box are not generally provided to connect an external antenna. The antenna box are often integrated, so this type of antenna is for routers with removable external antenna. I also bought the version is priced "outdoor" = TL-ANT2409B. But it is useless, the "external" version is exactly the same in terms of sealing and protection. If you bought the "external" version of this will already cost more and the longer it will buy a cable adapt N => SMA. So do not hesitate to take the "external" antenna I recommend 100%
