The QCN-27D+ from Mini Circuits is a 90 Degree Hybrid Coupler with Frequency 1700 to 2700 MHz, Average Power 15 W, Insertion Loss 0.4 to 0.9 dB, Isolation 18 to 30 dB, Amplitude Balance 0.2 to 1 dB. Tags: Ceramic. More details for QCN-27D+ can be seen below.