The PB2729 from Clear Microwave, Inc is a Analog Phase Shifter with Frequency 2.7 to 2.9 GHz, Phase Shift 0 to 180 Degree, Insertion Loss 3.4 to 3.6 dB, Control Voltage 0 to 4 V, Power dBm 26.99 dBm. Tags: Module with Connectors. More details for PB2729 can be seen below.