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

KHACHIMO

KHACHIMO FLEX-0130B 300W ATX power supply

SKU CH-776Q-E5KV4

300W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support

  • Product typeATX
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • Modern Standby compatible for faster wake from sleep and better low-load efficiency
  • Nine SATA connectors give plenty of drive connections

300 W ATX power supply

The KHACHIMO FLEX-0130B is a 300 W ATX power supply built for modern desktop builds and upgrades. It targets users who need efficient, quiet power delivery for mainstream components and Modern Standby sleep states. The unit carries 80 PLUS Gold certification and uses a resonant LLC topology with DC-to-DC conversion for stable output. It is not for systems that demand higher wattage or multiple high-power graphics connectors.

Standard ATX fit with nine SATA connectors

Installation follows the usual ATX mounting pattern and the unit provides nine SATA power connectors for drives and peripherals. The zero-RPM fan mode keeps noise down at low and medium loads, while the LLC topology helps reduce coil whine. Cable routing is straightforward, but builders should verify that the fixed cable lengths reach all devices in larger cases. The single 8-pin connector limits use with power-hungry graphics cards.

80 PLUS Gold efficiency at 300 W

The defining specification is the 300 W continuous rating backed by 80 PLUS Gold certification, which guarantees high efficiency across typical loads. This efficiency level lowers heat output and supports the zero-RPM fan behaviour described above. Systems requiring more than 300 W or additional PCIe power connectors will need a different unit.

How it compares

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

Price $141.99
Typical for this category: the median of 10,869 items is $142.99.

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Specifications

Product
Product typeATX

Questions about this item

How can I verify the 300W unit is delivering stable power after installation?

Check that the system boots reliably, monitor voltage rails in BIOS or software for steady readings, and confirm the fan remains off at idle thanks to the Zero RPM Fan Mode.

Which cables are included with the FLEX-0130B and what must I source separately?

The supply ships with nine SATA connectors; any additional PCIe, EPS or peripheral cables required by your components are not included.

Which efficiency tier should I choose for a 300W build?

This model is 80 PLUS Gold certified, offering high efficiency, lower consumption and cooler operation at the rated 300W capacity.

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