HPE 437573-B21

server power supply

HPE 437573-B21: specifications, applications and alternatives. Check compatibility and request configuration, availability and pricing.

Compatible with: All generations

Specifications

Model / identifier	HPE 437573-B21
Listed part number	437573-B21

Overview

HPE 437573-B21 is listed as server power supply. Use this page to identify the model, compare alternatives and prepare a configuration enquiry. Model identifiers and specifications: Listed part number: 437573-B21. When comparing HPE 437573-B21, retain the full model suffix and configuration. A similar name does not establish interchangeability. Include the exact server, installed components and firmware with your enquiry to identify the required variant and accessories. Pricing and delivery for HPE 437573-B21 must refer to the variant actually supplied. Record new/used/refurbished condition, label photographs, health testing and warranty terms in the quotation. This catalog entry alone does not confirm stock or immediate delivery.

Applications, trade-offs and selection guide

Power budget and input

Size the PSU for CPUs, drives, GPUs and expansion cards. Check AC/DC, input voltage, slot family and part number. Equal wattage does not guarantee interchangeability; verify the physical unit label.

Redundancy also needs independent power

For redundant configurations, verify supported PSU pairing. Two PSUs on one feed do not protect against failure of that feed. Coordinate cables, PDUs and UPS capacity with rack power design.

Schematic identifying the component class; not a stock-unit photograph.

Manufacturer documentation and lookup