The 39_QMA-SMA-U50-1/11-_NE from HUBER+SUHNER is a Between Series RF Adapter with Return Loss 28 to 34 dB, Frequency DC to 18 GHz, Mating Cycles 500 to 5000 Cycles, Temperature -40 to 125 Degree C. More details for 39_QMA-SMA-U50-1/11-_NE can be seen below.