The QPD4-100-500-50 from Qualwave is a Power Divider with Frequency 0.1 to 0.5 GHz, Insertion Loss 0.8 dB (SMA), 1 dB, Isolation 20 dB, Input Power 50 W, Amplitude Balance 0.2 dB, ±0.2 dB (SMA). Tags: Module with Connectors. More details for QPD4-100-500-50 can be seen below.