HPE DL325 G11 2SFF X4 U.3 SATA DA CA - P59617-B21

HPE P59617-B21 DL325 Gen11 2SFF x4 U.3 SATA Drive Cable Assembly

The HPE P59617-B21 is a direct-attach (DA) cable assembly designed to connect the x4 U.3 SATA backplane in HPE ProLiant DL325 Gen11 Small Form Factor (2SFF) configurations. At 0.07 lb, this is a lightweight internal interconnect — the kind of component that determines whether your drive backplane actually talks to the system board. If you are building out or expanding a DL325 G11 storage configuration and the backplane is dark, this cable (P59617-B21, often searched as P59617 B21) is likely the missing link.

Overview

The DL325 Gen11 platform supports a range of storage backplane configurations, and the 2SFF x4 U.3 SATA direct-attach variant requires a dedicated internal cable to route SATA signaling from the backplane to the server's storage controller. This assembly is the factory-specified interconnect for that path. U.3 is a multi-protocol drive bay standard that supports NVMe, SATA, and SAS devices in a shared physical form factor — meaning the backplane this cable serves can host a mix of SATA SSDs or NVMe drives depending on controller configuration, giving the DL325 G11 deployment flexibility without requiring a backplane swap.

Key Features

• SATA Interface: Carries SATA signaling across the internal backplane-to-controller path. If you are populating the 2SFF bays with SATA SSDs or HDDs, this direct-attach cable is required to complete that signal route — without it, the drives will not be visible to the OS or RAID controller.
• Direct-Attach (DA) Design: Factory-terminated on both ends for the DL325 Gen11 platform. Direct-attach assemblies eliminate field-crimping errors and maintain signal integrity across the short internal routing distances inside a 1U/2U chassis.
• U.3 Backplane Compatibility: The U.3 standard (formerly known as SFF-TA-1001) allows a single physical bay to host SATA, SAS, or NVMe drives. This cable enables the SATA protocol path on that backplane — a meaningful detail if your drive inventory spans SATA and NVMe and you want to retain the option to repopulate bays later without changing the physical backplane.
• Low Weight (0.07 lb): Internal cable assemblies of this class are designed to route within tight 1U chassis envelopes without adding routing stress. The 0.07 lb weight confirms this is a signal cable assembly, not a power distribution component — plan accordingly when laying out internal cable management.

Integration & Compatibility

This assembly is factory-specified for the HPE ProLiant DL325 Gen11 in the 2SFF small form factor chassis configuration with the x4 U.3 SATA backplane option. Verify your DL325 G11 chassis backplane part number before ordering — the DL325 Gen11 supports multiple backplane variants (NVMe-only, SATA, mixed U.3), and the cable assembly must match the installed backplane. This component is sourced from HPE's global manufacturing and distribution network, with country-of-origin spanning CN, CZ, JP, MX, and SG per HPE's standard supply chain for server accessories.

Frequently Asked Questions

Q: What server model is the P59617-B21 designed for?

A: The P59617-B21 is designed for the HPE ProLiant DL325 Gen11 (G11) in the 2SFF small form factor configuration with an x4 U.3 SATA backplane.

Q: What interface does the P59617-B21 use?

A: The P59617-B21 uses a SATA interface. It is a direct-attach (DA) cable assembly connecting the U.3 backplane to the storage controller.

Q: Can the P59617-B21 be used with NVMe drives?

A: This assembly carries SATA signaling. While the U.3 backplane it connects to is physically capable of hosting NVMe drives, this specific cable routes the SATA protocol path. NVMe operation requires a different cable/controller configuration. Verify your backplane and controller combination before mixing drive types.

Q: What does the 2SFF designation mean for this cable?

A: 2SFF refers to the Small Form Factor drive bay count in the chassis configuration (2 SFF bays). The P59617-B21 is the cable assembly matched to that specific bay/backplane combination in the DL325 Gen11 platform.

Q: Where is the P59617-B21 manufactured?

A: Per HPE's distribution data, the P59617-B21 is manufactured across multiple countries of origin: CN (China), CZ (Czech Republic), JP (Japan), MX (Mexico), and SG (Singapore), consistent with HPE's global server accessories supply chain.

Ted Perry

The P59617-B21 is one of those components that only matters when it is missing. As a direct-attach SATA cable assembly for the DL325 Gen11 2SFF x4 U.3 backplane, it is not glamorous — but if you are standing in a data center with a freshly racked DL325 G11 and the storage controller is not seeing your SATA drives, this is the first part number you check.

Technical Highlights:

• SATA Direct-Attach Routing: Factory-terminated DA assembly eliminates field-termination risk on internal signal cables — a common source of intermittent drive detection issues in dense 1U/2U chassis builds.
• U.3 Backplane Interface: The U.3 standard supports SATA, SAS, and NVMe in a shared bay — this cable activates the SATA path specifically. Understand which protocol path your controller and drives require before assuming U.3 means universal compatibility without the right cable.
• 0.07 lb Form Factor: At 0.07 lb, this is a pure signal cable assembly. Route it early during chassis build-out — internal cable management in the DL325 Gen11 2SFF configuration leaves limited clearance once drives and other assemblies are seated.

Deployment Considerations:

• Verify the installed backplane part number in your DL325 Gen11 chassis before ordering. The DL325 Gen11 supports multiple backplane variants, and the P59617-B21 is matched specifically to the 2SFF x4 U.3 SATA configuration — a mismatch means the cable will not seat correctly or will not connect to the right backplane header.
• This cable enables SATA protocol only on the U.3 backplane. If your storage plan includes NVMe drives in those same bays, a separate NVMe-capable cable assembly and compatible controller configuration will be required — do not assume SATA and NVMe share the same internal cable path even on a U.3 backplane.

The P59617-B21 is the right order for DL325 Gen11 deployments where SATA SSD or HDD population in the 2SFF bays is part of the storage design — particularly in edge server or distributed surveillance recording builds where SATA drives remain the cost-effective bulk storage medium.