The SMA/SSMA-JKS from Talent Microwave Inc is a Between Series RF Adapter with Frequency DC to 27 GHz, Insertion Loss 0 to 0.25 dB, Insulation Resistance 5000 Mohms, Temperature -55 to 165 Degree C, Voltage Rating 750 V. More details for SMA/SSMA-JKS can be seen below.