The LT12-544P-1G from MTS Systemtechnik GmbH is a Power Divider with Frequency 20 to 1000 MHz, Insertion Loss 0.70 to 3.2 dB, Isolation 16 to 25 dB, Input Power 0.1 to 1 W, Amplitude Balance 0.10 to 0.70 dB. Tags: Module with Connectors, Wilkinson Power Divider. More details for LT12-544P-1G can be seen below.