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Rectangular metal power supply unit with side fan grille and rear cable bundle

Replace Power

Replace Power FSP300-ATXPA-2 300 W power supply

SKU CH-TN1K-T3DP8 MPN FSP300-ATXPA-2

300 W ATX power supply with 20+4-pin and 12 V connectors, single-rail design, 115/230 V input, and >100 000 h MTBF

  • TypePower Module
  • Weight0.1
  • 300 W output powers Dell Inspiron 560 570 580 systems
  • 20+4 pin plus 12 V connector fits ATX motherboards
  • Single rail design delivers +12 V at 16 A
  • 115 V or 230 V input works worldwide
  • MTBF over 100 000 hours supports long service life

Replacement PSU for Dell Inspiron

This 300 W power module replaces the original unit in Dell Inspiron 560 570 580 desktops. It delivers +3.3 V at 13 A, +5 V at 13 A and +12 V at 16 A through a 20+4 pin and 12 V connector set. The single-rail design simplifies cable routing for a direct swap.

Input range and hold-up limits

The unit accepts 115 V or 230 V at 50 Hz or 60 Hz without a manual switch. Hold-up time is rated at 17 ms minimum at nominal input voltage while rise time stays below 70 ms. These figures define the practical window for brief mains interruptions.

Upgrading from a failed factory supply

This module restores power to systems where the original PSU has failed or become unstable. The jump is worth it when the existing unit can no longer maintain regulated rails under load. Builders needing higher wattage or additional connectors for discrete graphics should look elsewhere.

Highlights

  • 300 W output powers Dell Inspiron 560 570 580 systems
  • 20+4 pin plus 12 V connector fits ATX motherboards
  • Single rail design delivers +12 V at 16 A
  • 115 V or 230 V input works worldwide
  • MTBF over 100 000 hours supports long service life

Specifications

BrandReplace Power
ModelFSP300-ATXPA-2
TypePower Module
Weight0.1

Questions about this item

Is the FSP300-ATXPA-2 the right 300 W replacement for my Dell Inspiron 560, 570 or 580?

This unit is listed as a replacement power supply for the Dell Inspiron 560, 570 and 580 models.

What does the 300 W rating mean for the +12 V rail inside my PC?

The +12 V rail delivers up to 16 A, while the +3.3 V and +5 V rails each provide 13 A.

Will the 20+4-pin ATX and 12 V connectors fit a standard motherboard?

The supply uses a 20+4-pin main connector plus a dedicated 12 V connector for compatible boards.

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