Quantic PMI Model DP-DC4G-HPLP-SFF is a DC to 4 GHz diplexer with 1 input and 2 outputs. One path has a DC to 10 MHz low pass filter, and the other path has a 0.05 GHz high pass filter. The low pass filter has an isolated ground plane which is shorted to chassis ground above 0.1 MHz. Package size is 3.5" x 2.5" x 0.75" with SMA female connectors.