Extreme networks WS-AI-DE10055. Antenna gain level (max): 10.5 dBi, Frequency band: 2.4 - 2.5, 5.1 - 5.9 GHz, Networking standards: IEEE 802.11ac. Antenna type: Sector antenna, Polarization: Dual polarization, Voltage Standing Wave Ratio (VSWR): 2.25:1. Width: 12" (305 mm), Depth: 4.35" (110.5 mm), Height: 12" (305 mm). Quantity per pack: 1 pc(s)