DSO3-24-54/1177 is a small, discreet antenna with dual frequency bands, 2.4 to 2.5GHz and 5.15 to 5.85GHz, and dual slant polarisation.
It measures just 93mm x 100mm diameter, weighs 230 grams, and has four SMA(F) connectors. A flange is incorporated for mounting. The antenna was designed for wireless LAN WiFi hotspots.