The DQS-108-400 from Synergy Microwave Corporation is a 90 Degree Hybrid Coupler with Frequency 100 to 400 MHz, Average Power 1 W, Insertion Loss 0.6 to 1 dB, Isolation 20 to 25 dB, Coupling 3 dB. Tags: Surface Mount. More details for DQS-108-400 can be seen below.