The MQS-0218UA from Marki Microwave is a 90 Degree Hybrid Coupler with Frequency 2 to 18 GHz, Average Power 10 W, Insertion Loss 1.4 to 4.2 dB, Isolation 8.5 to 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for MQS-0218UA can be seen below.