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Rectangular metal server power supply unit with rear fan grille and power connector

Supersuperuncle

Supersuperuncle 300W server power supply N381F for Dell 530 531 545 560 570 580

SKU CH-FW45-HF2QG

A 300W replacement power supply for Dell 530, 531, 545, 560, 570 and 580 large-chassis systems

  • 300 W output powers compatible Dell desktops
  • Fits Dell 530 large chassis and 531 545 560 570 580 models
  • Replaces original N381F unit for direct swap
  • Brand-new condition ensures reliable server operation

300W replacement for Dell large-chassis desktops

This 300-watt unit is built as a direct replacement for the original power supply in Dell 530, 531, 545, 560, 570 and 580 large-chassis systems. It matches the N381F form factor and connector layout so it fits without modification. The supply is intended for owners or technicians restoring or maintaining those specific workstations and towers. It is not suitable for small-form-factor Dell cases, proprietary server racks or any platform outside the listed model range.

Thermals and power in normal use

The 300-watt rating defines the maximum continuous output the unit is designed to deliver under typical desktop loads. Cooling is handled by the internal fan arrangement engineered for the large chassis airflow path. Acoustic output will reflect the stock fan profile Dell specified for these workstations. Power draw at the wall scales with the actual system load rather than the rated maximum.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $159.99
Pricier than about 60% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install this N381F 300W unit into a Dell 530 large chassis and which step is often missed?

Slide the supply into the Dell 530 large chassis until the latch clicks, then seat the main power connector firmly; the step often missed is fully engaging the latch before tightening the retention screw.

What maintenance or replacement will this N381F 300W supply need over time in a Dell 560?

Expect to clean the intake vents every few months and replace the internal fan if bearing noise appears; the electrolytic capacitors typically last several years before a full unit swap is sensible.

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