The WR51 Series from Logus Microwave is a Waveguide Switch with Frequency 15 to 22 GHz, Insertion Loss 0.15 dB, Isolation 60 dB, Supply Voltage DC : 12, 15, 24, 28, 48 V, AC : 115, 230 V, Number of ports 4 Ports. Tags: Motorized. More details for WR51 Series can be seen below.