The FND300-1012G from Bel Fuse is a DC to DC Converter with Input Voltage -40 to -72 V, Output Voltage 1 12 V, Output Current 1 25000 mA, Output Power 300000 mW, Operating Temperature 0 to 55 Degree C. Tags: Rack Mount, Boost/Step Up. More details for FND300-1012G can be seen below.