The STO-1509305-R-E1 from ERAVANT is a Vector Network Analyzer Extender with Extended Frequency 50 to 75 GHz, Input Frequency 6.25 to 9.38 GHz, LO Frequency 6.25 to 9.38 GHz, Input Power -3 to 3 dBm (LO), 5 dBm (Damage), Dynamic Range 100 to 120 dB. More details for STO-1509305-R-E1 can be seen below.