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Rectangular ATX power supply unit with matte black metal casing and cooling fan grille

KHACHIMO

KHACHIMO SA5212H5 800W Power Supply PS-2801-12L

SKU CH-Q2NE-97JHR

An 800 W ATX unit with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support

  • Product typeATX
  • Modern Standby support enables extremely fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption, less noise, cooler temperatures
  • Zero RPM fan mode stops the cooling fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • ATX form factor 800W unit fits standard desktop builds with 12V output

800W ATX Power Supply for Modern Standby Systems

This KHACHIMO unit delivers 800 watts through an ATX form factor with 80 PLUS Gold certification. It targets builders who need efficient, quiet power for systems that use modern sleep states. The resonant LLC topology with DC-to-DC conversion provides clean voltage regulation across all loads.

Practical Limits of ATX Gold Efficiency

The 80 PLUS Gold rating guarantees high efficiency at typical loads, reducing waste heat and fan noise. Zero RPM mode keeps the fan stopped at low and medium loads for near-silent operation. Efficiency drops at very light or peak loads, so the supply cannot maintain Gold-level performance across every possible demand.

Modern Standby Compatibility Decides Fit

This unit supports Modern Standby for extremely fast wake times and better low-load efficiency. Systems without Modern Standby support will not benefit from the optimised sleep-state behaviour. Buyers whose motherboards lack this feature should consider whether the quiet operation and topology advantages justify the choice.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $560.99
Pricier than about 90% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Is the 800 W capacity the only option in this range?

The SA5212H5 is listed as an 800 W ATX unit; no other wattages are mentioned for this model.

What does the 80 PLUS Gold rating mean for daily use?

It certifies high efficiency across typical loads, so the PSU draws less power from the wall, runs cooler and keeps fan noise lower.

How does the 12 V rail behave under modern standby?

Resonant LLC topology with DC-to-DC conversion delivers clean 12 V power and supports low-power sleep states without coil whine.

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