The K4U TouchPower Series from Communications & Power Industries is a RF Amplifier with Frequency 12.75 to 14.8 GHz, Gain 77 dB, Small Signal Gain 0.4 dB pk-pk, Output Power Limit 62.91 to 63.89 dBm, Output Power Limit 62.91 to 63.89 dBm. Tags: Benchtop / Rackmount, Power Amplifier. More details for K4U TouchPower Series can be seen below.