A "Universal PC Power Supply 8+4 Pins" refers to a power supply unit (PSU) that provides both a main 8-pin EPS connector and an additional 4-pin ATX12V connector for the CPU, often allowing for a modular 4+4-pin design to serve motherboards requiring either an 8-pin, 4-pin, or even two 8-pin CPU power connections for high-power systems and overclocking.