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Rectangular silver ATX power supply unit with black cooling fan visible on one side

KHACHIMO

KHACHIMO BD-308 500W 24V ATX power supply

SKU CH-0S8E-WETTE

ATX power supply delivering 500W at 24V with 80 PLUS Gold efficiency, Modern Standby compatibility, zero-RPM fan mode and LLC resonant DC-to-DC topology

  • Product typeATX
  • Modern Standby compatible for faster wake-from-sleep
  • 80 PLUS Gold certified for lower power consumption and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • 500 W 24 V ATX output for stable system performance

24V 500W ATX Power Supply

The KHACHIMO BD-308 is a 24 volt ATX power supply rated for 500 watts. It uses a resonant LLC topology with DC-to-DC conversion to deliver clean and consistent power. The unit is 80 PLUS Gold certified for high efficiency and holds Modern Standby compatibility for fast wake-from-sleep transitions.

Quiet Builds and Modern Standby Systems

This supply suits builders who want near-silent operation at low and medium loads through its Zero RPM fan mode. It also fits systems that rely on Modern Standby for quick resume and improved low-load efficiency. It is not for systems that require a different output voltage or a higher wattage rating than 500 watts.

24 Volt Output Design

The defining specification is the 24 volt output design which replaces the common multi-rail arrangement. Your motherboard and components must be built for this single-voltage input. If your hardware expects a standard ATX multi-rail layout, this unit will not work.

How it compares

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

Price $233.99
Pricier than about 69% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Should I choose the 500W model for a typical 24V build?

The 500W rating matches the BD-308 single output, so it covers most mid-range 24V systems without needing a different capacity.

What does the 80 PLUS Gold figure mean once the unit is installed?

It means the supply runs at high efficiency across typical loads, lowering electricity draw, heat output and fan noise in daily use.

How does the ATX form factor limit what I can connect?

The ATX design fits standard cases and provides the usual motherboard, CPU and peripheral connectors for a 24V platform.

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