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HP 468406-B21 SAS Expander Card for Proliant Servers — main product image
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HP 468406-B21 SAS Expander Card for Proliant Servers

★★★★★3.9 (8 reviews)

Expand your ProLiant server's storage capacity with the HP 468406-B21 SAS Expander Card for additional SAS drive connectivity.

$99.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The HP 468406-B21 SAS Expander Card is a server-grade expansion component designed to increase the storage connectivity of compatible HP ProLiant servers. By adding this card, administrators can move beyond the native drive port limitations of their onboard SAS controllers, connecting additional SAS drives to scale storage capacity as workloads grow. The card integrates into the server's existing storage subsystem, working alongside a SAS controller or RAID card to extend the number of available drive bays without requiring a complete controller upgrade.

As a genuine HP component (spare part number 508040-001), the 468406-B21 is built to meet HP's validation and compatibility standards for ProLiant environments. This ensures reliable operation and seamless integration with HP server firmware and management tools. The card is particularly well-suited for data-intensive applications, virtualization hosts, and file servers where additional direct-attached storage is needed. It is worth noting that this is a legacy part, so prospective buyers should confirm compatibility with their specific ProLiant model and generation before ordering.

Key Features

508040-001

HP

Specifications

Manufacturer
HP (Hewlett Packard)
Part Number
468406-B21
Spare Part Number
508040-001
Interface
SAS
Type
SAS Expander Card
Compatibility
HP ProLiant Servers

Pros & Cons

👍 Pros

  • Enables connection of additional SAS drives beyond onboard controller limits
  • Designed and validated specifically for HP ProLiant server environments
  • Straightforward installation into compatible ProLiant server chassis
  • Provides scalable storage expansion without replacing existing controllers
  • Genuine HP part ensures firmware and hardware compatibility

👎 Cons

  • Limited to compatible HP ProLiant server models only
  • Requires an existing SAS controller or RAID card to operate
  • Sparse product documentation and feature details from the manufacturer
  • Older generation part that may be difficult to find new with warranty support
  • Does not include cables or additional hardware for drive connections

Frequently Asked Questions

The 468406-B21 is designed for use with HP ProLiant blade and rack servers that support SAS expander cards. Check HP's compatibility matrix for your specific server model before purchasing.
The SAS Expander Card increases the number of available SAS ports on your server, allowing you to connect more SAS drives beyond what the onboard controller supports. The exact number depends on your server chassis and backplane configuration.
Yes, the SAS Expander Card works in conjunction with an existing SAS controller or RAID card. It expands the number of drive connections available to that controller but does not replace it.
The HP spare part number for this SAS Expander Card is 508040-001, which corresponds to the option part number 468406-B21.
The card uses the SAS interface, which is backward-compatible with SATA drives. However, actual drive support depends on your server's backplane and controller configuration.

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