The 50P-2038 from JFW Industries is a solid state, programmable step attenuator which operates from 200 to 6000 MHz. It has an attenuation range of 31 dB with 1 dB steps, an insertion loss of 3.5 dB and can handle 27 dBm of input power. The attenuator is USB controlled and requires 5 V of DC supply. It has a typical switching speed of 0.7 uS and a VSWR of 1.8:1. This attenuator is available as a module with SMA connectors.