The PDM-21-2.59G SQ from Crane Aerospace & Electronics is a Power Divider with Frequency 2.468 to 2.709 GHz, Insertion Loss 0.25 dB, Isolation 20 dB, Input Power 1 W, Amplitude Balance ±0.2 dB. Tags: Module with Connectors. More details for PDM-21-2.59G SQ can be seen below.