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Rectangular silver plug-in module with HP branding and power connector

HP

HP 515739-B21 400W AC Power Supply Switch Module

SKU CH-6YS4-W0ERY

400W AC power supply module compatible with HP ProLiant DL320 G6 servers

  • Electrical Outlet Plug TypeProprietary Power Supply
  • 400 W output powers the HP ProLiant DL320 G6 Server
  • Plug-in module form factor allows direct installation in the server chassis
  • Proprietary power supply design ensures correct voltage delivery for the HP ProLiant DL320 G6 Server
  • New condition guarantees full rated performance from first use
  • HP 515739-B21 part number confirms exact compatibility with the HP ProLiant DL320 G6 Server

HP 515739-B21 400W AC Power Supply

The HP 515739-B21 is a 400 W AC power supply designed as a plug-in module for the HP ProLiant DL320 G6 Server. It delivers 400 W of output power through a proprietary electrical outlet plug type. This new component serves as a direct replacement or spare unit for maintaining server uptime in compatible rack environments.

Proprietary form factor and server integration

The plug-in module form factor allows tool-less installation directly into the server chassis, securing both power delivery and physical alignment without external cabling. Because the unit uses a proprietary connector, it cannot be adapted for use in standard ATX chassis or third-party equipment. The 400 W rating matches the original specification for the supported platform.

Suited for DL320 G6 maintenance.

This module suits IT teams maintaining HP ProLiant DL320 G6 servers who need a verified 400 W replacement. It does not fit other ProLiant generations, non-HP servers, or custom workstations lacking the proprietary slot and connector. Buyers needing redundant power for different hardware should look elsewhere.

Highlights

  • 400 W output powers the HP ProLiant DL320 G6 Server
  • Plug-in module form factor allows direct installation in the server chassis
  • Proprietary power supply design ensures correct voltage delivery for the HP ProLiant DL320 G6 Server
  • New condition guarantees full rated performance from first use
  • HP 515739-B21 part number confirms exact compatibility with the HP ProLiant DL320 G6 Server

Specifications

BrandHP
Electrical Outlet Plug TypeProprietary Power Supply

Questions about this item

Will the internal fan in the 515739-B21 module need replacement after extended operation?

The fan is built into the plug-in module; when it wears out the entire 400 W power supply is swapped rather than servicing the fan alone.

What is the maximum continuous output the 400 W unit can sustain in a ProLiant DL320 G6?

The supply is rated for 400 W total output; sustained loads above that level will trigger the built-in protection circuit.

How much heat and noise does the 515739-B21 produce when the server runs all day?

As a 400 W plug-in module it exhausts waste heat through the server chassis fans; acoustic output follows the host system’s fan profile.

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