The 50FH-XXX-50-3 from JFW Industries are Fixed Attenuators that operates from DC to 3 GHz. They are available for attenuation values ranging from 1 to 50 dB and have a VSWR of less than 1.4:1. These 50-ohm attenuators can handle up to 50 watts of average power and 1000 watts of peak power. They have an integrated heatsink and are available with BNC, N, SMA, TNC, 4.1/9.5, 4.3/10 and 7/16 connector options.