The PDVAT-27G31R5G-50dB from Quantic PMI (Planar Monolithics) is a RF Variable Attenuator with Frequency 27.0 to 31.5 GHz, Attenuation Range 50 dB, Insertion Loss 4 dB, Supply Voltage 12 V, Control Voltage 0 to 5 V. Tags: Module with Connectors, Voltage Controlled. More details for PDVAT-27G31R5G-50dB can be seen below.