HPE DL385 G11 8SFF Oroc X1 Sas/sata CBL - P57847-B21

HPE P57847-B21 DL385 Gen11 8SFF SAS/SATA Storage Cable

Overview

The HPE P57847-B21 is a factory-new, genuine storage interconnect cable engineered specifically for the HPE ProLiant DL385 Gen11 server in 8SFF (Small Form Factor) drive bay configurations. If you are replacing a damaged cable or completing a drive cage expansion on a DL385 Gen11, P57847-B21 is the correct HPE part — not a generic substitute that risks controller incompatibility or drive visibility issues under HPE Smart Array or HBA mode.

The cable carries both SAS and SATA signaling, so it supports the full range of drives the DL385 Gen11 8SFF backplane is designed to host — from SAS HDDs and SSDs to SATA SSDs. Using the correct OEM cable matters here: third-party SAS/SATA cables that lack HPE's validated connector keying and impedance matching have been known to cause intermittent drive drops under sustained I/O, which is the last failure mode you want in a production storage or virtualization host.

Key Features

• SAS and SATA Interface Support: A single cable handles both SAS and SATA drive protocols, so the same part covers mixed-drive backplane configurations without requiring separate cable runs — reducing the chance of a misrouted cable during maintenance.
• Platform-Specific Fit (DL385 Gen11, 8SFF): Designed and validated for the ProLiant DL385 Gen11 8SFF chassis — connectors, routing, and length are matched to the HPE backplane layout. Forcing a cable from a different server generation into this chassis introduces connector stress and potential signal integrity issues.
• Lightweight at 0.22 lb: At under a quarter-pound, the P57847-B21 (often searched as P57847 B21) adds negligible weight inside a dense 2U chassis — relevant when managing cable mass in fully populated drive configurations.
• US Origin: Manufactured in the United States, which is relevant for deployments subject to domestic-content procurement requirements.

Integration & Compatibility

This cable is designed for the HPE ProLiant DL385 Gen11 platform with the 8SFF drive cage option. Verify your server's drive bay count and backplane revision before ordering — HPE produces platform-specific cable variants for different SFF/LFF configurations and controller pairings on the DL385 Gen11 line. If your system is configured with a different drive count (for example, 12LFF or 24SFF), a different cable part number is required. Cross-reference the HPE QuickSpecs or server maintenance guide for your exact chassis build to confirm P57847-B21 is the correct match.

Frequently Asked Questions

Q: What server is the P57847-B21 designed for?

A: The P57847-B21 is designed for the HPE ProLiant DL385 Gen11 server in the 8SFF (Small Form Factor) drive bay configuration.

Q: Does the P57847-B21 support both SAS and SATA drives?

A: Yes. The cable supports both SAS and SATA interfaces, allowing it to work with SAS HDDs, SAS SSDs, and SATA SSDs in the DL385 Gen11 8SFF backplane.

Q: Will this cable work in a DL385 Gen10 or other HPE server generation?

A: This part is validated for the DL385 Gen11 8SFF configuration. HPE server cable routing and connector layouts differ across generations. Cross-reference the HPE QuickSpecs for your specific server model before ordering.

Q: Is the P57847-B21 a genuine HPE part?

A: Yes. This is a factory-new, genuine HPE part sourced through the distribution channel — not a grey-market or parallel-import product.

Q: What does the UNSPSC code 43211600 indicate for this product?

A: UNSPSC 43211600 classifies this product under computer cables and connectors — consistent with its function as a server storage interconnect cable.

James Everett

The P57847-B21 is the kind of part that only matters when something goes wrong — a failed cable mid-deployment, a drive cage expansion that stalls because the correct interconnect wasn't on hand. At 0.22 lb and designed specifically for the DL385 Gen11 8SFF backplane, it is a precision-fit replacement, not a generic SAS/SATA cable you adapt to the chassis.

Technical Highlights:

• Dual-protocol SAS/SATA signaling: One cable part covers the full drive mix the 8SFF backplane supports — SAS and SATA — so you are not stocking two separate cable SKUs for mixed-drive configurations.
• Platform-validated fit: Cable length, connector orientation, and routing are matched to the DL385 Gen11 8SFF chassis layout — a detail that matters when managing cable dress in a 2U server running a full complement of drives.
• US country of origin: Verified US manufacture, relevant for federal and DoD procurement environments with domestic-content requirements.

Deployment Considerations:

• Confirm the 8SFF drive cage variant before ordering — the DL385 Gen11 ships in multiple drive bay configurations, and HPE produces distinct cable part numbers for each. The wrong cable will not reach or will not seat correctly.
• Do not substitute with a generic SAS/SATA cable. HPE Smart Array controllers have specific requirements for cable impedance and connector keying; an off-spec cable may pass initial POST but introduce drive drops under sustained sequential write loads.

The P57847-B21 is the right order for data center teams maintaining DL385 Gen11 8SFF nodes in production storage or virtualization environments where a cable failure means unplanned downtime — keep at least one spare on the shelf if you are running a cluster of these servers.