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

KHACHIMO

KHACHIMO 550W ATX Power Supply DPS-550AB-11K

SKU CH-SHJT-FF3E5

An ATX power supply delivering 550W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology for quiet, stable power

  • Product typeATX
  • Modern Standby support for near-instant wake times
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps operation silent at low loads
  • Resonant LLC with DC-to-DC delivers clean, stable power
  • 550 W ATX capacity powers mainstream builds reliably

550W ATX Power Supply for Modern Systems

The KHACHIMO DPS-550AB-11K delivers 550W of continuous power through a standard ATX form factor. It is built for desktop builders who need reliable, efficient energy delivery for mid-range components. The unit supports Modern Standby for extremely fast wake-from-sleep times and improved low-load efficiency. This supply suits new workstations or upgrades where quiet, stable operation is a priority.

Gold Efficiency with Semi-Passive Cooling

An 80 PLUS Gold rating confirms high efficiency operation that reduces power consumption, noise and operating temperatures. Zero RPM fan mode stops the cooling fan entirely at low and medium loads for near-silent running. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine. These features also enable more energy efficient sleep states for daily use.

ATX Build with Standard Mounting

The ATX chassis fits typical case mounting points and uses standard connectors for motherboard, CPU and peripheral power. Resonant LLC topology with DC-to-DC conversion helps deliver stable voltages across varying loads. Modern Standby compatibility ensures the supply works correctly with current low-power sleep states. Builders who need higher wattage or redundant power modules should consider other options.

How it compares

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

Price $258.99
Pricier than about 73% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Does the 550W ATX unit have any user-serviceable parts such as a replaceable fan or fuse?

No user-serviceable parts are listed; the fan is internal and the unit is sealed, so maintenance would require professional service or full replacement.

What thermal or current limit is reached first when the 550W supply runs continuously at full load?

The 80 PLUS Gold rating guarantees high efficiency up to the rated 550W, so the primary limit is the 550W maximum output before over-power protection engages.

How loud and hot does the DPS-550AB-11K get after hours of all-day operation?

Zero RPM Fan Mode keeps the fan off at low and medium loads for near-silent running; at higher loads the fan spins, but 80 PLUS Gold efficiency minimises waste heat and noise.

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