Extreme networks WS-AI-DQ05120. Antenna gain level (max): 5.5 dBi, Frequency band: 2.4 - 2.5, 5.1 - 5.9 GHz, Impedance: 50 Ω. Antenna type: Sector antenna, Polarization: Dual polarization, Voltage Standing Wave Ratio (VSWR): 1.5 - 2.0. Width: 7.87" (200 mm), Depth: 1.34" (34 mm), Height: 7.87" (200 mm). Quantity per pack: 1 pc(s)