The M9168E from Keysight Technologies is a PXI RF Attenuator with Frequency DC to 50 GHz, Attenuation Range 0 to 101 dB, Current 0.5 to 5.8 A, Insertion Loss 2.5 to 6.5 dB, Power 30 dBm. Tags: Programmable Attenuator. More details for M9168E can be seen below.