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Silver rectangular 1U server power supply unit with rear exhaust grille and IEC inlet

myVolts

myVolts HSTNS-PL53 550W 1U 12V power supply

SKU CH-90RH-V9XYP MPN HSTNS-PL53

550 W 1U 12 V AT power supply with 80 Plus Silver efficiency for Gen 9 ProLiant DL60, DL80, DL120, DL160, DL180 and ML150 servers

  • TypeAT
  • Efficient 80 Plus Silver certification reduces energy waste
  • 550W output delivers stable power for ProLiant Gen 9 servers
  • Universal 100-240V input works worldwide without adapters
  • Compact 1U form factor fits dense rack environments
  • Direct replacement for HP part 748949-001 ensures compatibility

Server 1U Power Supply

The myVolts HSTNS-PL53 is a 550W 1U AT power supply built for HP ProLiant Gen 9 rack servers. It fits DL60, DL80, DL120, DL160, DL180 and ML150 models requiring a direct replacement unit.

Thermals and Power Draw

The unit accepts 100-240V input at 50-60Hz with a 3.3A draw and delivers 12V output at up to 550W. An 80 Plus Silver rating confirms efficient conversion under typical server loads.

Included Accessories

The power supply ships as shown in the product images with no additional cables, rails or management software included. Buyers needing redundant modules or alternative form factors must source those separately.

Highlights

  • Efficient 80 Plus Silver certification reduces energy waste
  • 550W output delivers stable power for ProLiant Gen 9 servers
  • Universal 100-240V input works worldwide without adapters
  • Compact 1U form factor fits dense rack environments
  • Direct replacement for HP part 748949-001 ensures compatibility

Specifications

TypeAT

Questions about this item

How do I install the HSTNS-PL53 into a 1U rack slot, and what step is often missed?

Slide the unit into the server bay until the latch clicks, then secure the retention screw; the screw is often left loose, causing the supply to lose contact under vibration.

What maintenance will the 550W 12V supply need over its life?

Clean the intake vents and internal fan every six months with compressed air; dust buildup reduces airflow and triggers thermal shutdown.

What limit appears first when the HSTNS-PL53 runs at full 550W load continuously?

The 80 Plus Silver efficiency curve drops above 80 % load, so waste heat rises sharply and the fan spins faster, increasing acoustic noise.

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