The D-Link DWL-50AT is a 5dBi Gain Dipole Antenna with Reverse SMA connector. It can help to improve the transmit rate and extend the transmit distance of any Air, AirPlus, AirPlusG+, AirPlusG or AirXtremeG Access Point or wireless gateway router which have a reverse SMA connector. To ensure a better performance, you should not only improve the RF on transmitter but also that on the receiver, as well. * Results may vary according to different environment conditions and /or devices