The LIM-SHX-DB-GZL-N-3-I from Shanghai Huaxiang Computer Communication Engineering is a DC Block with Frequency 80 MHz to 3 GHz, Insertion Loss 0.25 dB, Breakdown Voltage 3000 V (Withstand), VSWR 1.15:1, PIM -130dBc@2×43dBm. Tags: Connectorized. More details for LIM-SHX-DB-GZL-N-3-I can be seen below.