The ATEK352N4 from ATEK MIDAS is a RF Variable Attenuator with Frequency 2 to 40 GHz, Attenuation Range 21 to 54 dB, IIP3 32 dBm, Insertion Loss 0.3 to 4.2 dB, Control Voltage -3 to 0 V. Tags: Surface Mount, Voltage Controlled. More details for ATEK352N4 can be seen below.