This whitepaper discusses advancing military electronics, focusing on the need for increased processing power, tighter specifications, and shorter development times. It highlights the limitations of off-the-shelf VME power supplies and promotes using high-reliability or COTS DC-DC converter modules for optimized solutions. The modular approach ensures compliance with military standards like MIL-STD-704 and MIL-STD-1275, offering a cost-effective and low-risk alternative to custom power supplies. It emphasizes selecting DC-DC converters from manufacturers that meet high-quality and environmental standards for reliability in demanding applications