The TWGKTS xx-6-40-0.1-D from Techniwave is a RF Variable Attenuator with Frequency DC to 0.1 GHz, Attenuation Range 0 to 40 dB, Attenuation Step 1 dB, Power 30 W, Insertion Loss 0.75 dB. Tags: Module with Connectors, Programmable. More details for TWGKTS xx-6-40-0.1-D can be seen below.