The AT-DC-18M18F from AT Microwave is a DC Block with Frequency 50 KHz to 67 GHz, Insertion Loss -2 to -1.2 dB, Breakdown Voltage 16 V, Power Rating 27 dBm, Return Loss -10 to -8 dB. Tags: Module with Connectors. More details for AT-DC-18M18F can be seen below.