The SAT27B300XX04N from Sainty-Tech Communications Limited is a Fixed Attenuator with Frequency DC to 4 GHz, Attenuation 3 dB, 6 dB, 10 dB, 20 dB, 30 dB, 40 dB, Power 300 W, Peak Power 10 kW, Weight DC-2:350g, DC-4:450g. Tags: Module with Connectors. More details for SAT27B300XX04N can be seen below.