The PFE1100-12-054SD from Bel Fuse is a DC to DC Converter with Input Voltage -40 to -72 V, Output Voltage 1 12 V, Output Current 1 90000 mA, Output Power 1100000 mW, Operating Temperature 0 to 45 Degree C. Tags: Rack Mount, Boost/Step Up. More details for PFE1100-12-054SD can be seen below.