The S4UI series from Communications & Power Industries is a SATCOM Amplifier System with Frequency 13.75 to 14.50 GHz, Saturated Power 100 W (50 dBm), P1dB 80 W (49 dBm), Small Signal Gain 70 dB, Gain Adjustment Range 23 dB. Tags: Rack Mount, SSPA. More details for S4UI series can be seen below.