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Silver ATX power supply unit with side fan grille and multiple cable connectors

Replace Power

Replace Power RPSU-620-i 300W ATX power supply

SKU CH-0G01-ZFV9G

A 300W ATX power supply with reduced depth and a 20+4 pin adapter replaces many Dell units and includes SATA connectors

  • TypeATX
  • Fans1
  • Weight1.5
  • 300 W output powers Dell desktops reliably
  • 20+4 pin ATX connector fits 20 and 24 pin motherboards
  • 9 in depth suits compact chassis
  • 110-260 V AC input works worldwide
  • Over current and short circuit protection safeguards components

Replacement ATX supply for Dell systems

This 300W ATX unit replaces legacy Dell power supplies across Inspiron, Vostro and compatible models. It delivers a 20+4 pin main connector, a P4 12V four-pin, four SATA connectors, two LP4 connectors and a floppy connector. The reduced depth improves fit in compact chassis while maintaining standard ATX mounting.

Thermals noise and protection at normal load

A single fan cools the unit within an operating range of 0 to 50 degrees Celsius at full load. Over current, over power, over voltage and short circuit protection circuits guard connected components. The 110 to 260V AC switchable input adapts to different mains supplies without manual adjustment.

Behaviour under sustained load rather than a short

The +12V rails are each rated at 8A while the +5V rail provides 12A and the +3.3V rail provides 11A. Continuous operation at these combined outputs stays within the 300W design limit. Voltage regulation and protection thresholds remain active throughout extended sessions without derating.

Points forts

  • 300 W output powers Dell desktops reliably
  • 20+4 pin ATX connector fits 20 and 24 pin motherboards
  • 9 in depth suits compact chassis
  • 110-260 V AC input works worldwide
  • Over current and short circuit protection safeguards components

Caractéristiques

BrandReplace Power?
ModelRPSU-620-i
TypeATX
Fans1
Weight1.5

Questions sur cet article

How do I fit the 5.9 inch deep unit into my Dell chassis and which step often gets missed?

Align the reduced-depth housing with the four mounting holes, connect the 20+4 pin ATX and the P4 12V 4-pin cables, then secure all screws before routing the four SATA 15-pin leads.

What maintenance will this supply need after a few years of daily use?

Clean dust from the single intake fan and the mesh grille every six months; if the fan becomes noisy or airflow drops, replace the entire unit as no internal parts are user-serviceable.

Which limit appears first when the system runs at full load for long periods?

The operating temperature ceiling of 50 °C on full load is reached before the 300 W total rating, so sustained heavy draws will trigger thermal protection first.

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