The DB-N1N25A-6G100V/H44-H4 from Rosnol is a DC Block with Frequency DC to 6 GHz, Insertion Loss 0.5 dB, Breakdown Voltage 100 V, VSWR 1.25:1, Return Loss 19.08 dB. Tags: Connectorized, Inner DC Block. More details for DB-N1N25A-6G100V/H44-H4 can be seen below.