The SHX-8/12-4S from Shanghai Huaxiang Computer Communication Engineering is a Power Divider with Frequency 8 to 12 GHz, Insertion Loss 7.6 dB, Isolation 16 dB, Input Power 20 W, Amplitude Balance ±0.9 dB. Tags: Module with Connectors. More details for SHX-8/12-4S can be seen below.
