The KAT178120 from Konnect RF is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 0 to 95 dB, Attenuation Step 0.25 dB, Attenuation Accuracy ±0.1 dB, Power 2 W (33 dBm). Tags: Module with Connectors, Rotary, USB Controlled. More details for KAT178120 can be seen below.