The TWGKTSxx-5-20-3-B from Techniwave is a RF Variable Attenuator with Frequency DC to 3 GHz, Attenuation Range 0 to 20 dB, Attenuation Step 1 dB, Power 2 to 10 W, Insertion Loss 3 dB. Tags: Module with Connectors, Pushbutton. More details for TWGKTSxx-5-20-3-B can be seen below.