The STO-1220315-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 15 dBm (Test Port), Input Power -3 to 3 dBm (RF), 0 to 6 dBm (LO), 25 dBm (Damage). More details for STO-1220315-CM-E1 can be seen below.