Insten 335802 Wi-Fi 2.4GHz 7 DBI Booster Antenna SMA RP with Wireless Wlan NOTE: This antenna is only compatible with modems and routers with a 1/4 inch external antenna port Frequency: 2400-2483 MHzGain: 7 dBiImpedance: 50 OhmVSWR &lt; 15 Average Maximum Input Power 50 Antenna Length 9 inch Directionality Omni Polarization Vertical Weight: 18 oz Pigtail Length: 6 ft (72 in, 183 cm)Pigtail Connector Reverse Polarity SMANo Extra Pigtails Needed! Plug and Play-No extra pigtails needed. Comes with 6 feet pigtail with Reverse Polarity SMA termination. Plug directly into your D-link DWL520, Linksys WMP11, WET11, Net gear MA311, or D-link APs (anything that uses Reverse Polarity SMA).