Quantic PMI Model DD-20-34 is a High Speed, DC-Coupled, Directional Detector with 20 dB Directivity and 3 Watt Input Power Handling. The DD-20-34 is designed to operate over the 3.0 to 3.5 GHz band. Unit size is 2.44" X 1.50" X 0.77" and has SMA female Connectors.