A “single-rail” power supply has a single, high-power +12V rail for feeding power to hungry system components. A “multi-rail” unit divides its output between two or more +12V rails.

“Existing ATX multi-rail power supplies (5V, 3.3V, 12V, -12V, 5VSB) are not very efficient at low loads of today’s desktop computers when at idle,” according to Intel.

Last year Intel released the ATX12VO desktop power supply design guide, a list of specifications, rules, ... The new PSUs would deliver just a single rail of 12V juice for greater efficiency, ...

The perfect Honkai Star Rail PC is here, if you act fast. ... (2 x 16GB) of 6,000MHz DDR5 RGB RAM, an iBuyPower 360mm RBG AIO cooler, and a 750W 80Plus Gold power supply. ...