The CHB50W-24S28 from Cincon Electronics is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 28 V, Output Current 1 1780 mA, Output Power 33000 to 50000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Buck-Boost. More details for CHB50W-24S28 can be seen below.