The WR187 Series from Logus Microwave is a Waveguide Switch with Frequency 3.95 to 5.95 GHz, Insertion Loss 0.1 dB, Isolation 70 dB, Supply Voltage DC : 12, 15, 24, 28, 48 V, AC : 115, 230 V, Number of ports 4 Ports. Tags: Motorized. More details for WR187 Series can be seen below.