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Lenovo 550 W hot-plug server power supply, silver metal enclosure, 3.1 by 1.5 by 7.7 inches

Lenovo

Lenovo 4X20F28579 550 W server power supply

SKU CH-1DXY-STXSA MPN 4X20F28579

Hot-swappable 550 W server power supply with 80 Plus Platinum efficiency

  • Product typeOthers
  • Key featuresOutput Power: 550 WHeight: 3.1 in (78.7 mm)Width: 1.5 in (38
  • Product weight2.52
  • Hot-plug design allows replacement without server shutdown
  • 80 Plus Platinum certification for high-efficiency power conversion
  • 550 W output supports demanding server configurations
  • Compact 1.5" width fits dense rack environments
  • 2 lbs weight eases handling during maintenance

Hot-plug 550 W server power module

This Lenovo 4X20F28579 is a 550 W hot-plug power supply designed for compatible Lenovo servers. It installs as a plug-in module and carries 80 Plus Platinum efficiency certification. The unit measures 3.1 by 1.5 by 7.7 inches and weighs approximately 997.9 g.

Suited for hot-swap server bays.

This supply suits administrators who need to replace a failed unit without powering down the rack. Builders assembling workstations or tower servers that use fixed, non-hot-swap power supplies should look elsewhere.

550 W output with 80 Plus Platinum rating

The single specification that decides fitment is the 550 W output combined with 80 Plus Platinum efficiency. Verify that your server chassis accepts this exact wattage and form factor before ordering.

How it compares

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

Price $175.99
Pricier than about 64% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameLenovo
Model name4 × 20F28579
Product typeOthers
Size & build
Shipping weight1.36 kg
Package size305 × 140 × 102 mm

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