The AAT-19-479/1S from Pulsar Microwave is a RF Variable Attenuator with Frequency 1.0 to 4.0 GHz, Attenuation Range 64 dB, Power 0.5 W, P1dB 27 dBm, Insertion Loss 5 dB. Tags: Module with Connectors, Voltage Controlled. More details for AAT-19-479/1S can be seen below.