The M4D3040 from Synergy Microwave Corporation is a Power Divider with Frequency 3 to 4 GHz, Insertion Loss 1 to 1.7 dB, Isolation 15 to 20 dB, Input Power 1 W, Amplitude Balance ± 0.2 to 0.5 dB. Tags: Surface Mount. More details for M4D3040 can be seen below.