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Rectangular ATX power supply unit in matte black finish with side label and rear fan grille

KHACHIMO

KHACHIMO 1133W ATX Power Supply SPASUNM-08G 80 PLUS Gold

SKU CH-1GCJ-QFHB2

An 1133W ATX power supply with 80 PLUS Gold efficiency, zero RPM fan mode, resonant LLC topology, DC-to-DC conversion, and Modern Standby compatibility for fast wake times

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps system silent at low loads
  • Resonant LLC topology with DC-to-DC delivers clean, stable power
  • 1133 W ATX output powers demanding workstation builds

1133W ATX Power Supply for Workstation Replacements

This 1133W ATX unit is built for high-output workstation chassis such as the KHACHIMO X4640, X4600, M2 and T5440. It delivers the sustained power those platforms require while meeting 80 PLUS Gold efficiency targets. The supply suits IT managers refreshing fleet hardware or enthusiasts restoring a compatible rack or tower system.

Standard ATX Fit with Zero-RPM Idle

Installation follows the regular ATX form factor, so the unit slides into the same bay and uses the same screw pattern as the original supply. Cable routing matches the factory harness layout for the listed workstation models. The only common issue is verifying that the specific connector mix matches the motherboard revision, as some revisions differ in auxiliary power counts.

80 PLUS Gold Efficiency at 1133W

The single specification that determines fit is the 1133W continuous rating combined with 80 PLUS Gold certification. Systems drawing significantly less peak power will not benefit from the efficiency curve, while configurations exceeding this limit risk shutdown. Buyers needing lower-wattage or higher-wattage units should select a different model.

Highlights

  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps system silent at low loads
  • Resonant LLC topology with DC-to-DC delivers clean, stable power
  • 1133 W ATX output powers demanding workstation builds

Specifications

TypeATX

Questions about this item

How can I verify the 80 PLUS Gold 1133 W unit is operating correctly after installation?

Check that the system posts reliably, monitor voltages in the BIOS or software to confirm they stay within ATX limits, and listen for the fan to remain off during light loads as the Zero RPM mode engages.

What ships with the SPASUNM-08G and what must be sourced separately?

The power supply includes the modular unit and a full set of detachable cables for ATX 24-pin, CPU and PCIe connections; mounting screws and a power cord are also supplied.

Which compatible server models should I match this 1133 W replacement to?

This unit is designed for KHACHIMO X4640, X4600 M2 and T5440 platforms and carries part number 300-2158 for exact identification.

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