The RS8-588P-S1 from MTS Systemtechnik GmbH is a Power Divider with Frequency DC to 600 MHz, Insertion Loss -0.3 to 0.5 dB, Isolation 17.5 to 18 dB, Input Power 0.1 to 2.5 W, Amplitude Balance 0.20 to 0.50 dB. Tags: Module with Connectors, Resistive Power Divider. More details for RS8-588P-S1 can be seen below.