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Rectangular silver server power module with rear fan grille

KHACHIMO

KHACHIMO PSR650B-12A1 650W power supply

SKU CH-E2F6-BGK0Q

An ATX power supply delivering 650W with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Fast wake from sleep with Modern Standby support
  • High efficiency 80 PLUS Gold cuts power draw and heat
  • Silent Zero RPM fan mode at low and medium loads
  • Clean, stable power from resonant LLC with DC-to-DC conversion
  • 650W ATX output for reliable server and workstation use

Product Identity

The KHACHIMO PSR650B-12A1 is a 650W ATX power supply built for modern desktop systems. It carries 80 PLUS Gold certification and supports Modern Standby for rapid wake-from-sleep. Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine.

Suitability

This unit suits builders who want high efficiency and near-silent operation at low loads thanks to its Zero RPM fan mode. It is not for systems that need more than 650W of power, servers requiring redundant modules, or compact builds needing SFX form factor.

Deciding Specification

The single specification that decides fit is the 650W rated output. If your component list draws more than this figure under load, the supply cannot support the build. If the total draw stays within 650W, the Gold-rated efficiency and Modern Standby support make it a strong match.

Highlights

  • Fast wake from sleep with Modern Standby support
  • High efficiency 80 PLUS Gold cuts power draw and heat
  • Silent Zero RPM fan mode at low and medium loads
  • Clean, stable power from resonant LLC with DC-to-DC conversion
  • 650W ATX output for reliable server and workstation use

Specifications

TypeATX

Questions about this item

How can I verify the PSR650B-12A1 is delivering stable power after installation?

Monitor system stability under load and check that the unit meets its 80 PLUS Gold efficiency rating; the Resonant LLC topology with DC-to-DC conversion ensures clean, consistent power output.

What cables and accessories come with the KHACHIMO PSR650B-12A1, and what must I purchase separately?

The unit is a server power module; standard ATX cables are not included and must be sourced separately to match your chassis and component requirements.

Which version of the 650W KHACHIMO supply should I choose for a modern standby build?

The PSR650B-12A1 is Modern Standby compatible, offering fast wake-from-sleep and high low-load efficiency, making it the correct choice for that use case.

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