The SHX-DB-GZL-N-XX from Shanghai Huaxiang Computer Communication Engineering is a DC Block with Frequency 80 MHz to 6 GHz, Insertion Loss 0.25 to 0.35 dB, Breakdown Voltage 3000 V (Withstand), VSWR 1.15:1, 1.25:1, Operating Temperature -55 to 100 Degree C. Tags: Connectorized. More details for SHX-DB-GZL-N-XX can be seen below.