The AAT-27-479/4S from Pulsar Microwave is a RF Variable Attenuator with Frequency 8.0 to 12.4 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-27-479/4S can be seen below.