The Quad-Hub is available in two configurations. The first model is a 4 × 90-degree antenna with four individual Type "N" female connectors, one for each sector. The second configuration features a 4 × 1 RF switching unit internal to the antenna unit. Both models are offered in vertical polarization with 16-dBi gain. Radio Waves, Inc. offers the Quad-Hub in addition to their full line of 60-degree, 90-degree, and 120-degree sectors.