Insten 2 Pack Wi-Fi Wireless Antenna/Router Signal Booster NOTE: This antenna is only compatible with modems and routers with a 1/4 inch external antenna port. 5 X Range Extender - Extends up to 5 times the original range of your WiFi access in open space. 5 X Range Extender - Extends up to 5 times the original range of your WiFi access in open space. 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, Netgear MA311, or D-link APs (anything that uses Reverse Polarity SMA). Frequency: 2400-2483 MHz Maximum Input Power 50 W