The QCN-34D+ from Mini Circuits is a 90 Degree Hybrid Coupler with Frequency 2500 to 3400 MHz, Average Power 15 W, Insertion Loss 0.4 to 0.7 dB, Isolation 20 to 32 dB, Amplitude Balance 0.4 to 1.2 dB. Tags: Ceramic. More details for QCN-34D+ can be seen below.