The VA 10 - SQB- (***-***)-B from The Waveguide Solution is a Waveguide Attenuator with Frequency 2.6 to 3.95 GHz, Average Power 4 W, Attenuation 0 to 40 dB, Insertion Loss less than 0.3dB. More details for VA 10 - SQB- (***-***)-B can be seen below.