Quantic PMI Model Number DTA-812-BA-80-14B-SFF OPT10D27 is a Digitally Tuned Attenuator covering the 8 to 12 GHz frequency range and optimized for 10.27 GHz.  Has a maximum VSWR of 2.0:1, a minimum input P1dB power level of +20 dBm, a maximum insertion loss of 8 dB, and a maximum switching speed of 500 ns. This model is tuned using fourteen +3.3V RS-422 control bits, has SMA female connectors and is 3.25" x 2.00" x 0.50".   https://www.pmi-rf.com/product-details/dta-812-ba-80-14b-sff-opt10d27