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Grey ATX power supply unit with single fan and multiple connectors

Replace Power

Replace Power H350N-00-RPSU-A 350W ATX power supply

SKU CH-T50G-Z6KG3 MPN H350N-00-RPSU-A

350 W ATX replacement unit with reduced depth for Dell Inspiron 537, 540, 545 and 546 mini towers

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • 350 W output powers Dell Inspiron 537 540 545 546 systems
  • ATX reduced-depth form factor fits mini-tower cases
  • 24-pin ATX plus 4-pin CPU and three SATA connectors support multiple drives
  • Hi-Pot tested with low ripple and noise for stable delivery
  • 110/220 V auto-range input with 17 ms hold-up time

Replacement Power Supply for Dell Inspiron 537 540

This 350W ATX power module fits Dell Inspiron 537 540 545 546 Mini Tower systems. It accepts 110/220V AC input at 47~63Hz and provides +5V, -5V, +12V1, +12V2, +3.3V, -12V and +5V-SB rails. A single fan cools the unit.

Upgrading from a failed or noisy original Dell unit

The supply replaces the factory unit when it fails, becomes noisy or can no longer hold voltage under load. A rise time under 70 ms and a minimum 17 ms hold-up time at nominal load mark the point where the swap restores stable operation. Builders who need more than 350W or additional PCIe connectors should look elsewhere.

Straightforward ATX swap with reduced depth

The reduced depth chassis measuring 5.86" x 3.3" eases installation in tight Mini Tower bays. Connectors include a 24 (20+4) pin ATX, a P4 12V 4 pin, three SATA 15 pin, three LP4 4 pin and one floppy 4 pin. Verify that the 4 pin CPU connector matches the motherboard header before closing the case.

Highlights

  • 350 W output powers Dell Inspiron 537 540 545 546 systems
  • ATX reduced-depth form factor fits mini-tower cases
  • 24-pin ATX plus 4-pin CPU and three SATA connectors support multiple drives
  • Hi-Pot tested with low ripple and noise for stable delivery
  • 110/220 V auto-range input with 17 ms hold-up time

Specifications

BrandReplace Power
ModelH350N-00-RPSU-A
ColorGrey
TypeATX
Fans1
Weight0.1

Questions about this item

What chassis depth does the 5.86-inch ATX reduced-depth form factor fit?

The unit measures 5.86 inches deep and 3.3 inches wide, matching the Dell Inspiron 537 540 545 546 Mini Tower mounting pattern.

Which connectors must be seated during installation, and which one is most often missed?

Seat the 24-pin ATX, 4-pin P4-12V, three SATA 15-pin, three LP4 4-pin and one floppy 4-pin; the 4-pin P4-12V near the CPU socket is the step most often missed.

When should the internal fan be cleaned to maintain the 350 W output?

Vacuum the single fan intake every 6–12 months; dust buildup reduces airflow and can trigger the 70 ms rise-time protection under load.

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