The STO-1220305-CM-E1 from ERAVANT is a Vector Network Analyzer Extender with Extended Frequency 60 to 90 GHz, Input Frequency 10 to 15 GHz, LO Frequency 10 to 15 GHz, Output Power 5 dBm (Test Port), Input Power -3 to 3 dBm (RF), 0 to 6 dBm (LO), 15 dBm (Damage). More details for STO-1220305-CM-E1 can be seen below.