2 Pack of Alfa 2.4HGz 7dBi Booster SMA Panel High-Gain Screw-On Swivel Antenna for D-Link DI-514, DI-524, DI-614, DI-624, DI-624S, DI-624M, DI-711, DI-713P, DI-714, DI-714P, DI-724U, DI-764, DI-774, DI-824VUP, DP-311P, DP-311U, DP-313, DP-G321, DP-G310, DP-G321, DPG-2000W, DSL-G604T, DSM-604H, DSM-622H, DSM-624H, DWL-1000AP, DWL-1700AP and DWL-1750 This Antenna is original Alfa brand - the most trusted nome in network range Fits all routers access points VOIP devices and PCI cards with an RP-SMA connection Replaces Factory Standard Antenna and Boosts the Range of your Router as much as 4x Up to 145% Performance and 150% Distance increase (depends on specific installation situation)