Quantic PMI Model P4T-0R5G18G-50-T-SFF-OPT50M4G is a single pole, four throw reflective switch designed to operate over the 0.05 to 4 GHz frequency range that is designed to maintain low insertion loss, high isolation, and fast switching speed. Housing measures 1.0" x 1.2" x 0.24" with SMA female connectors.