The SP16857 from Sigatek is a Power Divider with Frequency 0.5 to 18 GHz, Insertion Loss 6.5 to 7.5 dB, Isolation 15 dB (Minimum), Input Power 30 W, Amplitude Balance 1 dB (Maximum). Tags: Module with Connectors, Wilkinson Power Divider. More details for SP16857 can be seen below.