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Rectangular silver ATX power supply unit with fan grille and side label

KHACHIMO

KHACHIMO 450W ATX Power Supply MRW-3450V-R

SKU CH-K1J0-TP754

An ATX power supply delivering 450 watts with 80 PLUS Gold efficiency, Modern Standby support, a Zero RPM fan mode for silent low-load operation.

  • Product typeATX
  • Fast wake from sleep with Modern Standby support
  • High efficiency 80 PLUS Gold certification cuts power draw
  • Silent Zero RPM fan mode at low and medium loads
  • Clean, stable power from resonant LLC with DC-to-DC conversion
  • 450 W ATX power supply for standard desktop builds

Power for standard ATX builds

The KHACHIMO MRW-3450V-R is a 450W ATX power supply built for everyday desktop systems. Its 80 PLUS Gold certification ensures high efficiency, reducing waste heat and electricity draw. Modern Standby compatibility allows extremely fast wake-from-sleep transitions for supported motherboards. It suits general office work, home media playback and entry-level gaming rigs.

Simple ATX installation with quiet operation

Mounting follows the standard ATX form factor using four screws in any compatible chassis. A 24-pin main connector, CPU power lead and peripheral cables reach typical motherboard layouts without strain. Zero RPM mode keeps the fan off at low and medium loads for silent running, while LLC resonant topology with DC-to-DC conversion minimises coil whine. Ensure all modular or fixed cables seat fully to avoid intermittent power delivery.

Verify connectors and clearance before ordering

Confirm your motherboard requires a standard 24-pin ATX and the correct CPU power configuration (4-pin or 8-pin). Check that the unit's physical length fits your case's power supply bay and that cable routing paths allow airflow. Systems demanding more than 450W continuous draw or multiple high-end graphics cards need a higher-capacity unit.

How it compares

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

Price $436.99
Pricier than about 87% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How can I verify the KHACHIMO MRW-3450V-R is working correctly after installation?

Check that the system boots normally and resumes from sleep quickly, confirming Modern Standby compatibility.

What cables and accessories come with the 450W unit and what must I purchase separately?

The fixed ATX cable set is included for motherboard, CPU and GPU power; mounting screws and a power cord are also supplied.

Which version of the KHACHIMO 450W supply should I choose for a quiet, efficient build?

The MRW-3450V-R model offers 80 PLUS Gold efficiency, Zero RPM fan mode and LLC resonant topology for low noise and heat.

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