The PEC550-12-074RD from Bel Fuse is a DC to DC Converter with Input Voltage -36 to 72 V, Output Voltage 1 12 V, Output Current 1 45000 mA, Output Power 550000 mW, Operating Temperature 0 to 50 Degree C. Tags: Rack Mount, Buck-Boost. More details for PEC550-12-074RD can be seen below.