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Silver ATX power supply unit with side label showing model numbers

KHACHIMO

KHACHIMO R320 R420 550W Power Supply DPS-550MB RYMG6 M95X4 D33R2

SKU CH-2PWW-C5R9C

550W ATX power supply tested working for Dell PowerEdge R320 and R420 servers

  • Product typeATX
  • 550W output supports R320 and R420 systems
  • ATX form factor fits standard chassis dimensions
  • Tested working ensures reliable power delivery
  • Good quality components provide stable operation

Compatible 550W ATX power supply

This 550W ATX unit matches the DPS-550MB part number used in R320 and R420 systems. It supplies standard ATX power for compatible desktop builds. Each unit is tested working before dispatch. Builders replacing a failed original supply in these models will find a direct fit.

Verified connectors for R320 R420 chassis

The wiring and connector layout follow the DPS-550MB specification, so mounting points and cable reach align with the original chassis. Good build quality supports reliable daily operation. Systems needing a different pin-out or higher wattage will require another unit.

How it compares

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

Price $77.99
Cheaper than about 76% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What ATX power standard does this 550W PSU follow?

It follows the ATX form factor, so it fits standard ATX cases and motherboard power connectors.

Which Dell server models are listed as compatible with this DPS-550MB unit?

The supplier title references Dell PowerEdge R320 and R420 systems for this 550W power supply.

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