A 20dB broadband thruline attenuator ( Mono-directionl) working from DC to 2GHz with +-0.5dB error and 2GHz-4GHz with +-1dB error. Continuous power rating is 25Watts (forward) de-rating to 5Watts (reverse). Total frequency range and vswr: 1:1.25, DC-4GHz. Connectors: “N”(m) input, “N”(f) output. Size: 135mm (L) x 25mm dia. Weight: 90gm.