The LT3-544P-4G from MTS Systemtechnik GmbH is a Power Divider with Frequency 500 to 4000 MHz, Insertion Loss 0.70 to 1 dB, Isolation 19 to 25 dB, Input Power 1 to 10 W, Amplitude Balance 0.05 to 0.30 dB. Tags: Module with Connectors, Wilkinson Power Divider. More details for LT3-544P-4G can be seen below.