This HP 128286-031 delivers Power Supplies functionality and is built for 24/7 enterprise duty cycles. Technical specifications include connector of 24-pin, power of 450W, generation of Gen1, features of Hot-Swap, Redundant. Common deployment scenarios include enterprise data-center, server-room, and managed-service-provider environments where matched-OEM-part procurement is required for warranty and compliance continuity. Pro Disk Network sources the 128286-031 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The 128286-031 is a HP power supplies component with connector 24-pin, power 450W, generation Gen1. Pro Disk Network sells the 128286-031 for $284.67 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 128286-031 are shown on this page.
Trust Signals
US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
The 128286-031 is a HP power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 128286-031 ship?
128286-031 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
The 128286-031 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Rack PDU Replacement — Vertical or horizontal PDUs in cabinet retrofits. Metered or switched models for granular outlet-level control.
Branch UPS — Office or remote site UPS. 1500–3000 VA covers most server-rack mini-deployments with 5–15 minute runtime.
Datacenter UPS Module — Online double-conversion UPS for production server rooms. Match VA rating to total connected load + 30% headroom.
Telco / Battery Backup — DC-powered batteries for telco-class equipment, ISP CPE, and outdoor cabinets. Confirm voltage (-48 V vs +12/24 V).
What is the 128286-031?
The 128286-031 is a HP server power supply unit with connector 24-pin and power 450W, manufactured by HP. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 128286-031
Pros
Same-day US shipping reduces production downtime
Cons
Server-grade PSU — not for desktop or workstation use
Higher in-rush current — confirm UPS sizing
Frequently Asked Questions about 128286-031
Is the 128286-031 a genuine HP part?
Yes. Pro Disk Network sources every 128286-031 as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 128286-031 fit my system?
The 128286-031 is a HP power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 128286-031 ship?
128286-031 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the 128286-031?
New 128286-031 units carry the full HP manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 128286-031?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 128286 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
128286-001 — 128286-001 - HP 450-Watts 110-115V AC ATX Redundant Hot Pluggable Power Supply for Proliant ML530 ML570 G1 — $190.40
128286-011 — 128286-011 - HP 450-Watts 24-Pin ATX Redundant Hot-Pluggable Power Supply for Proliant ML530 ML570 G1 — $266.23
128286-021 — 128286-021 - HP 450-Watts 24-Pin ATX Redundant Hot-Pluggable Power Supply for Proliant ML530 ML570 G1 — $405.08
128286-291 — 128286-291 - HP 450-Watts 24-Pin ATX Redundant Hot-Pluggable Power Supply for Proliant ML530 ML570 G1 — $317.66
128286-B21 — 128286-B21 - HP 450-Watts 24-Pin ATX Redundant Hot-Pluggable Power Supply for Proliant ML530 ML570 G1 — $318.05
Pro Disk Network Buyer’s Guide: Power Supplies
PSU Sizing: Connected Load, Efficiency Curves, and N+1 Redundancy
For N+1 redundancy in a dual-PSU server, both PSUs must be rated to handle full load alone. This is non-negotiable in production: if a single PSU fails and the surviving one is undersized, the system shuts down. The 128286-031 should be matched in wattage rating to the partner PSU in the chassis; mismatched ratings sometimes work but trigger warnings in the BMC.
AC Input, Phase Balancing, and Datacentre Power Best Practices
Document the 128286-031 model, wattage, and partner PSU in your CMDB. Power audits typically find one or two undersized servers and one or two over-redundant clusters per rack — both of which waste capacity that could feed additional production load.