Model Brand: Rosewill Model: RNX-A2-EX Spec Type: Antenna Specifications: Frequency Range: 2.4~2.5GHzVSWR: 2.0Polarization: LinearMaximum Gain: 2.0 dBi @2.4 GHzRadiation pattern: Omni-directionalImpedance: 50 O nominalConnector: Reverse SMA PlugPeak Gain: Features Features: Low loss extended Cable allows versatile placement for optimal coverage Compatible with all 2x3, 3x3 wireless adapters and routers 3x 2 dBi Omni directional antennas with magnetic baseSMA connector. NOT for TNC interface device.* Please do not place on top of your Hard drive to avoid possible damage from the Magnetic base