The KAT177623 from Konnect RF is a RF Variable Attenuator with Frequency 0.03 to 4 GHz, Attenuation Range 0 to 127 dB, Attenuation Step 0.25 dB, 0.5 dB, 1 dB, Attenuation Accuracy ±0.3 to ±0.5 dB, Power 1.99 W. Tags: Rackmount, Programmable. More details for KAT177623 can be seen below.