The JDMH0208R from DFINE Technology is a 90 Degree Hybrid Coupler with Frequency 200 to 800 MHz, Insertion Loss 0.5 dB, Isolation 20 dB, Coupling 3 dB, Amplitude Balance ± 0.5 Degree. Tags: Module with Connectors. More details for JDMH0208R can be seen below.