HPE

HPE P55084-B21 | 8SFF tri-mode backplane | U.2 | PCIe x4 per bay | SAS/SATA/NVMe | DL385 Gen11

SKU:P55084-B21

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Description

8-bay SFF tri‑mode U.2 backplane for DL385 Gen11 with PCIe x4 per-bay links, supporting NVMe (U.2) alongside SAS/SATA devices when paired with a compatible tri‑mode controller. For the appropriate 8SFF cage; requires Gen11 tri‑mode RAID/HBA and matching MCIO cabling.

Features

- Performance NVMe with PCIe x4 per bay
- Tri‑mode flexibility for SAS, SATA, and NVMe media
- SFF‑8639 connectivity aligned to U.2 NVMe drives
- Hot‑plug support with drive status LEDs
- Validated fit for DL385 Gen11 8SFF configurations

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: How does a U.2 tri‑mode backplane differ from U.3?
A: U.3 unifies SAS/SATA/NVMe on a single connector definition, while U.2 identifies NVMe. Both use SFF‑8639; actual compatibility depends on the backplane and controller design.

Q: Will this backplane run SAS/SATA drives?
A: Yes, when used with a compatible tri‑mode controller that supports SAS/SATA on the designated ports.

Q: Is x4 required for high‑performance NVMe?
A: x4 per bay is recommended to realize full performance of most enterprise NVMe SSDs.

Q: Are additional cables needed?
A: Yes. Use MCIO/tri‑mode cables appropriate for your controller and the server’s lane topology.

Q: Is it interchangeable with U.3 backplanes?
A: No. Use the exact backplane type specified for your server configuration and drive plan.

Technical Specifications

- Form factor: 8x SFF (2.5 in) bays
- Backplane type: Tri-Mode (SAS/SATA/NVMe)
- Drive connector standard: U.2 (SFF-8639)
- PCIe link per bay (NVMe): x4
- Supported drive protocols: SAS, SATA, NVMe
- Hot-plug drive support: Yes
- Intended system: ProLiant DL385 Gen11
- Installation location: 8SFF drive cage (per system configuration)
- Controller requirement: Tri‑mode capable Gen11 HBA/RAID for NVMe; SAS/SATA HBA/RAID for SAS/SATA
- Cabling interface: MCIO (controller-to-backplane), matched to controller and lane width

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