Planar Monolithics (PMI) Model PA-218-45-5-10W-24V-SFF is a 2 to 18 GHz solid state power amplifier (SSPA) featuring 38 to 48 dB gain, ±2.5 dB gain flatness, noise figure of 5.5 dB maximum, and minimum saturated output power of 10 W. Package size is 2.88" x 2.5" x 0.67" with removable SMA female connectors.  https://www.pmi-rf.com/product-details/pa-218-45-5-10w-24v-sff