HPE DL560 G11 Ac/lc 8SFF X4 B3 4P DAC - P58339-B21

HPE P58339-B21 DL560 Gen11 8SFF DAC Cable Assembly

Overview

The HPE P58339-B21 is a Direct Attach Copper (DAC) cable assembly designed for the HPE ProLiant DL560 Gen11 platform. Identified by UNSPSC code 26121607 — a classification covering server cable assemblies — this kit targets the DL560 G11's 8SFF (Small Form Factor) drive bay configuration with a four-port interface, supporting the X4 backplane in a B3 bay arrangement. If you are building or expanding a DL560 Gen11 storage subsystem, the P58339-B21 (often searched as P58339 B21) is the factory-matched cable option for that specific bay-and-backplane pairing.

DAC assemblies like this one matter in high-density server environments because they eliminate the latency and signal conversion overhead of active optical transceivers while keeping cabling costs contained. In a DL560 Gen11 chassis running NVMe or SAS/SATA storage, the correct backplane-to-controller cable is not interchangeable — using the wrong assembly risks drive non-detection or reduced lane bandwidth, making OEM-matched parts the practical choice over generic alternatives.

Key Features

• Platform-specific fit: Engineered for the DL560 Gen11 8SFF bay 3, four-port (4P) backplane — this is not a universal cable. Correct fit means the storage controller sees all drives at full negotiated bandwidth from first boot, avoiding the diagnostic overhead of mismatched assemblies.
• DAC construction: Direct Attach Copper keeps signal integrity high over short chassis-internal runs without requiring powered transceivers or SFP optics — lower component count means fewer failure points inside a dense 4-socket server chassis.
• OEM-sourced part: Sourced factory-new through the HPE supply chain. Chassis-internal cables with incorrect pinout or impedance tolerance can cause intermittent drive errors that are notoriously difficult to root-cause under load — OEM provenance removes that variable.
• UNSPSC 26121607 classification: Structured procurement systems using UNSPSC codes for server cable and connector purchases can reference this code directly for catalog matching and PO line-item classification.

Integration and Compatibility

The P58339-B21 is specific to the HPE ProLiant DL560 Gen11 in an 8SFF drive configuration. Before ordering, verify the target chassis generation (Gen11, not Gen10 or Gen10+), the bay position (B3), and the backplane type (X4). HPE's server configurator and QuickSpecs for the DL560 Gen11 are the authoritative sources for confirming which cable assembly maps to your exact storage option kit. If your DL560 G11 uses a different bay count (4LFF, 16SFF) or a different backplane tier, a different HPE cable assembly part number will apply — cross-referencing the server's option kit number against the HPE configurator before procurement prevents a return cycle.

Frequently Asked Questions

Q: What server platform is the HPE P58339-B21 designed for?

A: The P58339-B21 is a cable assembly for the HPE ProLiant DL560 Gen11 in an 8SFF (Small Form Factor) drive bay configuration, specifically the X4 backplane in a B3 bay with a 4-port interface.

Q: Is the P58339-B21 compatible with DL560 Gen10 or Gen10+ servers?

A: The available evidence does not confirm Gen10 or Gen10+ compatibility. This part is identified for the Gen11 platform. Verify compatibility against HPE QuickSpecs for your specific chassis generation before ordering.

Q: What does the UNSPSC code 26121607 indicate for procurement purposes?

A: UNSPSC 26121607 classifies this as a server cable assembly. Procurement systems that use UNSPSC codes for catalog and PO line-item matching can reference this code for the P58339-B21.

Q: Can I substitute a generic DAC cable in place of the P58339-B21?

A: Generic substitution is not recommended for chassis-internal backplane cables on OEM server platforms. Incorrect pinout or impedance can produce intermittent drive errors that are difficult to isolate under production load. Using the OEM-matched assembly removes that risk.

Q: Where is the HPE P58339-B21 manufactured?

A: The country of origin is listed as BL, BR per distribution data.

Ted Perry

The P58339-B21 is one of those parts that only matters when it is missing — the DL560 Gen11's storage subsystem will not enumerate drives correctly without the right backplane cable for the B3 bay position, and the X4 four-port assembly is what HPE specifies for the 8SFF configuration. Get it wrong at build time and you are tracing a ghost problem under production load.

Technical Highlights:

• Bay-specific design: The X4 backplane and B3 bay designation are not generic — this cable routes signal lanes for that specific slot. Substituting an adjacent-bay assembly risks partial drive enumeration, which can appear as a RAID controller warning rather than a cabling error.
• DAC vs. active options: Direct Attach Copper is the correct choice for chassis-internal runs where distance is under one meter — no powered transceiver, no SFP to seat, no optical budget to calculate. Fewer components in the signal path is the right call inside a 4-socket chassis already dense with cooling and power infrastructure.
• OEM provenance: Factory-new OEM parts matter more for backplane cables than for most accessories because the failure mode of a bad cable — intermittent NVMe or SAS error under I/O load — is one of the hardest patterns to distinguish from controller or drive firmware issues during root-cause analysis.

Deployment Considerations:

• Confirm the DL560 G11 chassis generation and storage option kit number in HPE's configurator before ordering — the same server line ships with multiple backplane configurations and the cable assembly is not interchangeable across bay counts.
• Evidence for this SKU is limited to distribution-tier structured data; consult HPE QuickSpecs for the DL560 Gen11 to verify the full compatibility matrix for your specific storage option kit before procurement.

The P58339-B21 fits one scenario cleanly: a DL560 Gen11 build or storage expansion requiring the 8SFF B3 four-port backplane cable. Outside that exact configuration, a different HPE assembly number applies — confirm before you order.