Quantic PMI Model No. PS-85M4G-9B-SFF is a 0.085 to 4.0 GHz, Digitally Controlled Phase Shifter with capability for phase shifting from 0° to 360°. Other specifications include insertion loss 7.9 dB; VSWR 1.53:1; amplitude error ±0.12 dB; phase shift error +0.6° and switching speed 300 ns.  The unit consists of an analog phase shifter and a digital to analog converter. Nine logic input lines allow 512 discrete values of phase. Housing size is 4.95" x 3.38" x 1.00" with SMA Female Connectors.

https://www.quanticpmi.com/product-details/ps-85m4g-9b-sff