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PartsTable / POWER_SUPPLY / 503378-001
503378-001 ✓ Verified by PartsTable
HP · POWER_SUPPLY · HOTPLUG_PSU
WHAT YOU NEED TO KNOW
Hotplug PSUs are very sturdy — rarely see warranty claims. Safe bet. Always make sure they're tested. Key checks: Make sure tested.
PRODUCT OVERVIEW

HP PSU 320W for 6000/8000/8100 CMT's. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
POWER_SUPPLY→ HOTPLUG_PSU→ 503378-001
SPECIFICATIONS
Part Number503378-001
ManufacturerHP
Wattage320W
COMPONENT DIAGRAM
PULL TAB AIRFLOW 320W PLATINUM 100-240V~ 50/60Hz HP BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | 320W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU 320W PN 503378-001 MFR HP Platinum
KEY FEATURES
•
320W Power Rating
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
508154-001Compatible
HP PSU 320W for 6000/8000/8100 CMT's
compatible
PS-4321-9HACompatible
HP PSU 320W for 6000/8000/8100 CMT's
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
PS-4321-9HASUBSTITUTE
HP PSU 320W for 6000/8000/8100 CMT's
HP
508154-001SUBSTITUTE
HP PSU 320W for 6000/8000/8100 CMT's
HP
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FREQUENTLY ASKED QUESTIONS
What is 503378-001?
503378-001 is a HP PSU 320W for 6000/8000/8100 CMT's manufactured by HP. It is classified as a POWER_SUPPLY (HOTPLUG_PSU).
What parts can replace 503378-001?
There are 2 known substitutes for 503378-001: 508154-001, PS-4321-9HA. Substitute compatibility should be verified for your specific system.
Is 503378-001 still available?
503378-001 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026