The PTU2000-12-074ND from Bel Fuse is a DC to DC Converter with Input Voltage -40 to -72 V, Output Voltage 1 12 V, Output Current 1 167000 mA, Output Power 2000000 mW, Operating Temperature -5 to 50 Degree C. Tags: Rack Mount, Boost/Step Up. More details for PTU2000-12-074ND can be seen below.