A broadband 20dB Bi-directional attenuator working from DC to 1GHz with ±0.75dB error. Continuous power rating is 150Watts. VSWR: 1:1.20, DC-1GHz. Bi-Directional Connectors: “N”(m) Input “N”(f)output . Size: 310mm (Hi) x 66mm w x 170mm deep. Weight: 3.5kg. Be sure to check your connection genders. Adaptersor short cable lengths can be ordered as extras.