The DRF40R24S5 from Calex Manufacturing is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 5.1 V, Output Current 1 8 A, Output Power 40 W, Isolation Voltage 2.5 kV. Tags: Chassis Mount, Buck/Step down. More details for DRF40R24S5 can be seen below.