The QS8-12-463/3S from Pulsar Microwave is a 90 Degree Hybrid Coupler with Frequency 2 to 16 GHz, Insertion Loss Coupling Loss : 3.5 ± 0.6 dB, Isolation 18 dB, Coupling 3 dB, Amplitude Balance 1.2 dB. Tags: Module with Connectors. More details for QS8-12-463/3S can be seen below.