HPE P58338-B21 ProLiant DL560 Gen11 Drive Bay Expansion Kit
Overview
The HPE P58338-B21 is a factory-configured drive bay expansion component designed for the HPE ProLiant DL560 Gen11 platform. Based on the product designation — DL560 G11 AC 8SFF X4 B2 4P 24SFF DAC — this kit provides additional Small Form Factor (SFF) drive bay capacity and backplane connectivity, enabling higher storage density within the DL560 Gen11 chassis. If you are scaling out direct-attached storage on a ProLiant DL560 Gen11 node, P58338-B21 is the HPE-qualified path to do it without compromising platform warranty or firmware compatibility.
The UNSPSC classification 26121607 (computer storage device accessories) confirms this is a hardware infrastructure component, not software or a service SKU. It is manufactured in Belgium (BL) and/or Brazil (BR) per HPE's global supply chain for ProLiant accessories.
Key Features
- DL560 Gen11 Platform Fit: Engineered specifically for the ProLiant DL560 G11 chassis — HPE-qualified components integrate without firmware workarounds or unsupported hardware alerts in iLO, which third-party equivalents often trigger.
- 24SFF Bay Expansion: The 24SFF designation in the part name indicates substantial SFF drive bay capacity — relevant for NVMe or SAS/SATA dense deployments where maximizing drives-per-U matters in constrained rack environments.
- Direct Attach Connectivity (DAC): The DAC reference in the part string indicates direct-attach cabling architecture, typically lower latency and cost compared to switched storage fabric for local storage pools.
- Genuine HPE Component: Factory-new, sourced through HPE supply channels — ensures iLO hardware health monitoring reports clean status and HPE support contracts remain intact.
Integration and Compatibility
This component is specific to the HPE ProLiant DL560 Gen11 server platform. Verify your chassis generation before ordering — DL560 Gen10 and Gen10 Plus backplane configurations differ and cross-generation compatibility is not supported by HPE. Consult the HPE HPE server components catalog or the DL560 Gen11 QuickSpecs for slot and backplane mapping before purchase.
For complete enterprise server storage buildouts, pair with HPE-qualified SFF drives and the appropriate SAS expander or controller card validated for the DL560 Gen11 platform. Review HPE's storage solutions lineup for compatible drive options and controllers.
Frequently Asked Questions
Q: What server is the P58338-B21 compatible with?
A: The P58338-B21 is designed for the HPE ProLiant DL560 Gen11 (G11) server platform. It is not interchangeable with DL560 Gen10 or other ProLiant models — verify your chassis generation before ordering.
Q: What does the DAC designation mean in the P58338-B21 part name?
A: DAC stands for Direct Attach Connectivity, referring to the backplane cabling architecture used in this drive bay configuration. Direct-attach designs provide low-latency local storage connectivity without an intervening storage switch.
Q: Is the P58338-B21 a genuine HPE part?
A: Yes. P58338-B21 is a factory-new, genuine HPE component — not a third-party or grey-market equivalent. Genuine HPE parts maintain full iLO hardware health monitoring compatibility and do not trigger unsupported hardware alerts.
Q: What is the country of origin for the P58338-B21?
A: HPE lists the country of origin as BL (Belgium) and/or BR (Brazil), consistent with HPE's multi-region manufacturing for ProLiant accessories.
The P58338-B21 is a purpose-built drive bay expansion component for the ProLiant DL560 Gen11 — the part designation encodes a specific backplane configuration (8SFF x4 riser, B2 position, 4-port, 24SFF total, DAC architecture) that HPE validates as a unit. Mixing and matching backplane components outside of HPE-qualified configurations on the DL560 G11 is one of the fastest ways to land in an unsupported iLO state mid-deployment.
Technical Highlights:
- Platform Specificity: The G11 suffix is non-negotiable — DL560 Gen11 backplane pinouts and firmware handshakes differ from Gen10; this part will not seat correctly in prior-generation chassis.
- 24SFF Density: 24 Small Form Factor bays in a single expansion configuration is significant for NVMe-dense AI inference or database workloads where drive count directly constrains parallelism.
- Genuine HPE Supply Chain: Manufactured in Belgium/Brazil through HPE's own production lines — iLO health sensors report clean status only for HPE-originated components; third-party equivalents commonly trigger persistent hardware health warnings.
Deployment Considerations:
- Confirm your DL560 Gen11 chassis revision and riser slot availability against the HPE QuickSpecs before ordering — the B2 position designation means slot placement is fixed, not flexible.
- Published specification data for this SKU is limited in distribution feeds; pull the DL560 Gen11 QuickSpecs directly from HPE's support site to validate drive controller compatibility before integrating into a storage design.
Best fit for ProLiant DL560 Gen11 deployments expanding local SFF drive capacity in NVMe-dense compute nodes — particularly AI inference servers and high-IOPS database hosts where maximizing drives-per-chassis is a design constraint.
