KHACHIMO FAS2050 855W ATX Power Supply

855W ATX power supply for modern PCs

The KHACHIMO FAS2050 delivers 855W of continuous power through an ATX form factor, suited to high-performance desktop builds and workstations that demand stable output. Its 80 PLUS Gold certification confirms high efficiency at typical loads, reducing waste heat and electricity draw. Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and supports deeper sleep states.

Zero RPM fan mode and topology reduce noise

At low and medium loads the cooling fan stops completely, yielding near-silent operation during idle or light workloads. The resonant LLC design with DC-to-DC conversion further suppresses coil whine for quieter running. These features change the acoustic profile without requiring extra software or manual fan curves. The unit ships as a standalone power supply without bundled cables or accessories listed in the data.

Standard ATX installation with usual constraints

Installation follows the normal ATX mounting pattern and uses the standard 24-pin, CPU and PCIe connectors expected in current chassis. Builders must verify that their case accepts the supply's physical depth and that cable reach matches their component layout. The most common issue is insufficient clearance for stiff 24-pin or EPS cables in compact cases, and forgetting to seat the 12VHPWR or PCIe plugs fully on high-draw graphics cards.