The QCN-12AD+ from Mini Circuits is a 90 Degree Hybrid Coupler with Frequency 800 to 1250 MHz, Average Power 15 W, Insertion Loss 0.3 to 0.7 dB, Isolation 13 to 17 dB, Amplitude Balance 0.2 to 0.8 dB. Tags: Ceramic. More details for QCN-12AD+ can be seen below.