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Black rectangular ATX power supply unit with fan grille and cable bundle

KHACHIMO

KHACHIMO FSP 550W / 600W ATX Power Supply

SKU CH-Z7C8-38F15

ATX power supply delivering 550W or 600W with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low loads for silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power
  • Dual 550 W and 600 W models cover different build requirements

ATX Power Supply for Modern Standby PCs

This KHACHIMO FSP unit delivers 550W or 600W of continuous power through a standard ATX form factor. It suits builders assembling new systems or upgrading existing ones that require reliable, efficient energy delivery. The design supports Modern Standby for rapid wake-from-sleep transitions. 80 PLUS Gold certification confirms high efficiency across typical loads.

Zero RPM Fan Mode and LLC Topology Benefits

A Zero RPM fan mode stops the cooling fan completely at low and medium loads, providing near-silent operation during everyday tasks. Resonant LLC topology paired with DC-to-DC conversion supplies clean, consistent power while reducing coil whine. These features also enable more energy-efficient sleep states, lowering overall system power draw when idle.

Compatibility Checks Before Ordering

Verify that your chassis accepts a standard ATX power supply and that the cable set matches your motherboard, CPU and graphics card connectors. Ensure the 550W or 600W capacity aligns with your components' total power requirements. Confirm your motherboard supports Modern Standby to use the fast wake functionality.

How it compares

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

Price $185.99
Pricier than about 60% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Will the cooling fan eventually need replacement after continuous use?

The Zero RPM Fan Mode stops the fan at low and medium loads, reducing wear and extending the fan's service life before any replacement is needed.

What limits sustained output before the unit shuts down?

The 550 W and 600 W ratings are the maximum continuous power limits; exceeding either rating triggers over-power protection and shuts the unit down.

How much heat and noise does the supply produce when running all day?

80 PLUS Gold efficiency and Zero RPM Fan Mode keep heat and noise minimal at typical loads, while the Resonant LLC topology with DC-to-DC conversion further reduces coil whine.

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