The DQK-2-125B from Synergy Microwave Corporation is a 90 Degree Hybrid Coupler with Frequency 2 to 250 MHz, Average Power 1 W, Insertion Loss 1.8 to 2 dB, Isolation 15 to 20 dB, Coupling 3 dB. Tags: Module with Connectors. More details for DQK-2-125B can be seen below.