The DGA 9553 BNC from Schwarzbeck Mess - Elektronik OHG is a Fixed Attenuator with Frequency DC to 2 GHz, Attenuation 3, 6, 10, 20, 30 dB, Power 1 W, Length 50 mm, Operating Temperature -45 to 100 Degree C. Tags: Module with Connectors. More details for DGA 9553 BNC can be seen below.