KHACHIMO 800W 500W power supply MC800B4-3-4R1-02

800 W ATX Power Supply for Modern Standby Systems

This 800 W ATX unit delivers 80 PLUS Gold efficiency and supports Modern Standby for rapid wake-from-sleep. Resonant LLC topology with DC-to-DC conversion provides clean power and enables low-power sleep states. A zero RPM fan mode stops the fan at low and medium loads for silent operation. It suits builders who want efficient, quiet power for current platforms.

Fits Standard ATX Builds with Modern Sleep Support

The supply mounts in any ATX chassis and connects to motherboards and components with standard cables. Modern Standby compatibility frees the system to enter deeper sleep states and resume instantly. Gold-rated efficiency reduces waste heat, easing the burden on case airflow. Zero RPM mode eliminates fan noise during light desktop work or media playback.

Replaces Older Units Lacking Modern Standby

This unit upgrades from power supplies that cannot meet Modern Standby timing or 80 PLUS Gold levels. The jump is worthwhile when a build requires faster wake times, lower idle draw, or quieter low-load operation. It is not for systems needing more than 800 W or for compact form factors that require SFX dimensions.