The QM4075A from Polyphase Microwave is a Modulator with RF Frequency 4 to 7.5 GHz, RF Frequency 4 to 7.5 GHz, LO Frequency 4 to 7.5 GHz, Conversion Loss 6.5 to 8.5 dB, P1dB 13 dBm (Input). Tags: Module with Connectors. More details for QM4075A can be seen below.