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

KHACHIMO

KHACHIMO S7503 S7506 450W ATX power supply

SKU CH-V6QQ-W4041

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

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation thanks to Zero RPM fan mode
  • Cleaner power delivery using resonant LLC with DC-to-DC conversion
  • 450 W ATX output for reliable system performance

Modern Standby ATX PSU for Efficient Builds

This 450W ATX power supply carries 80 PLUS Gold certification for high-efficiency operation and lower heat output. It is designed for desktop systems that support Modern Standby, delivering fast wake-from-sleep times and improved low-load efficiency. The Resonant LLC topology with DC-to-DC conversion ensures clean, consistent power delivery and reduced coil whine.

Verify ATX Clearance and Connector Needs

Before ordering, confirm your chassis accepts a standard ATX form-factor unit and that the fixed cable set matches your motherboard, CPU, GPU and storage connectors. Check that the 450W capacity aligns with your component power draw, especially if you run a discrete graphics card. Ensure the rear mounting pattern and depth suit your case layout without obstructing airflow or other components.

Zero RPM Mode and LLC Topology Cut Noise

The Zero RPM fan mode stops the cooling fan completely at low and medium loads, enabling near-silent operation during everyday tasks. Resonant LLC topology with DC-to-DC conversion further reduces coil whine and supports deeper, more energy-efficient sleep states. Together, these features lower acoustic output and improve power quality without extra software or hardware.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation thanks to Zero RPM fan mode
  • Cleaner power delivery using resonant LLC with DC-to-DC conversion
  • 450 W ATX output for reliable system performance

Specifications

TypeATX

Questions about this item

What cables are included with the KHACHIMO S7503 S7506 450W ATX power supply and what must be purchased separately?

The unit ships with the standard ATX power cable set for motherboard, CPU, graphics and storage connections; no extra cables are required for a typical build.

Should I choose the S7503 or S7506 version of this 450W supply?

Both model numbers refer to the same 450W ATX unit with identical 80 PLUS Gold certification, Modern Standby support, Zero RPM fan mode and LLC resonant topology.

What does the 450W rating mean for actual system power delivery?

The 450W continuous rating means the supply can deliver up to 450 watts across all rails combined while maintaining 80 PLUS Gold efficiency and stable voltages under load.

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