Insten 205143 Wi-Fi Booster Antenna for Wireless LAN CARD AP SMA NOTE: This antenna is only compatible with modems and routers with a 1/4 inch external antenna port Magnetic Mount - Put the antenna near the window or on top of a vehicle where it can pick up more signals 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) Manufactured in ISO-9001 compliant facilities. Fully tested with HP RF network analyzer.