The RMAD.IS.BNCffmT from Response Microwave Inc is a In Series RF Adapter with Frequency DC to 4 GHz, Contact Resistance 1 to 2 Mohms, Insertion Loss 0 to 0.36 dB, Insulation Resistance 5000 Mohms, Temperature -55 to 125 Degree C. More details for RMAD.IS.BNCffmT can be seen below.