The A481-4XW-30 from Spacek Labs is a Frequency Multiplier with Input Frequency 11.75 to 12 GHz, Output Frequency 47 to 48 GHz, Input Power 17 dBm, Output Power 30 to 31 dBm, Frequnecy 11.75 to 12 GHz. Tags: Active. More details for A481-4XW-30 can be seen below.