The B2BYM-SI from CommScope is a RF Connector with Frequency DC to 6 GHz, Operating Temperature -55 to 85 Degree C, PIM -117 to -110 dBm, Return Loss 20.01 to 30.04 dB, Storage Temperature -65 to 125 Degree C. Tags: Standard. More details for B2BYM-SI can be seen below.