The M-42-13-95WN from Narda-MITEQ is a 90 Degree Hybrid Coupler with Frequency 400 MHz to 1 GHz, Average Power 500 W, Insertion Loss 0.2 dB, Isolation 20 dB, Amplitude Balance ± 0.75 dB. Tags: Module with Connectors. More details for M-42-13-95WN can be seen below.