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Silver rectangular ATX power supply unit with cooling fan and cable connectors

KHACHIMO

KHACHIMO DC -48V 1100W Power Supply

SKU CH-J1ZG-01PAB

A 1100 W DC -48 V power supply for Dell PowerEdge R550, R650, R750xs, R850, R7525 and R6525 servers, with 80 PLUS Gold efficiency, zero-RPM fan mode and LLC resonant topology for clean, quiet power

  • TypeATX
  • Modern Standby compatibility for extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Designed for R550, R650, R750xs, R850, R7525 and R6525 server platforms

Target Systems

This 1100W ATX power supply is designed for Dell PowerEdge R550, R650, R750xs, R850, R7525 and R6525 servers. It accepts a -48V DC input, making it suitable for telecommunications or data-centre environments that run on DC power plants.

Critical Specification

The single deciding factor is the -48V DC input voltage; this unit will not operate from a standard AC mains supply. Buyers who need an AC-input power supply for a typical rack or tower server cannot use this model.

Installation Notes

The supply uses a standard redundant form factor that slides into the server chassis and locks with a thumb-screw. Ensure the DC source is correctly polarity-wired and rated for the full 1100W load; reversed polarity or undersized feed conductors are the most common causes of failure.

Points forts

  • Modern Standby compatibility for extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Designed for R550, R650, R750xs, R850, R7525 and R6525 server platforms

Caractéristiques

TypeATX

Questions sur cet article

What does the 1100W rating mean for a Dell PowerEdge R750xs running at full load?

The 1100W unit can deliver up to 1100 watts of continuous DC power, so a fully loaded R750xs will draw what it needs up to that limit without shutting down.

How does the -48V DC input affect compatibility with standard data-centre power distribution?

The supply accepts a -48V DC source directly, matching common telecom and hyperscale rack bus voltages, so no AC rectifier stage is required in the rack.

Will this unit fit in the same bay as the original 550W supply in a PowerEdge R650?

Yes, it shares the same redundant CRPS form factor used by the 550W, 650W and 750W units, so it slides into the existing hot-swap bay without modification.

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