BIRUGEAR 2 Pack Wi-Fi Wireless Antenna / Router Signal Booster 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. Plug and Play - No extra pigtails needed. Comes with 6 feet pigtail with Reverse Polarity SMA termination. Frequency: 2400-2483 MHz. 5 X Range Extender - Extends up to 5 times the original range of your WiFi access in open space. Maximum Input Power 50 W