HPE Proliant Compute DL360 GEN12 MR932I-P 2SFF Stacking X4 BOX 4/5 PCIE SLOT1 CO - P85638-B21

HPE P85638-B21 ProLiant DL360 Gen12 PCIe Stacking Box

Overview

The HPE P85638-B21 is a PCIe stacking component engineered for HPE ProLiant DL360 Gen12 server configurations deploying the MR932i-P controller in a 2SFF drive bay layout. Specifically designed for the Box 4/5 PCIe Slot 1 position, the P85638-B21 (often searched as P85638 B21) provides the mechanical and electrical stacking interface that allows the correct seating and alignment of PCIe add-in cards within the DL360 Gen12 chassis — a detail that matters when you are configuring dense 1U rack deployments where every slot assignment and physical fitment is deliberate.

Key Features

• PCIe Interface: Connects via PCIe, the standard high-bandwidth expansion bus used in ProLiant Gen12 platforms — ensuring signal integrity and compatibility within the server's internal slot architecture without requiring additional adapters or converters.
• Purpose-Built for DL360 Gen12 MR932i-P 2SFF: Designed specifically for the Box 4/5 Slot 1 configuration of the DL360 Gen12 with MR932i-P storage controller and 2SFF drive bay. Using the correct HPE option kit here avoids fitment issues that a generic or wrong-generation bracket would introduce.
• Lightweight at 0.20 lb: The 0.20 lb weight reflects a precision-machined interconnect component — not a full card — keeping the server's thermal and structural load within HPE's validated parameters for this chassis.

Integration & Compatibility

The P85638-B21 is qualified for use within the HPE ProLiant DL360 Gen12 platform. Verify the specific MR932i-P controller and 2SFF bay configuration matches your server build before ordering — HPE Gen12 stacking kits are slot-position specific and are not interchangeable between Box configurations or controller variants. Consult the HPE server components catalog or the DL360 Gen12 QuickSpecs for the applicable slot-to-kit mapping. For broader HPE ProLiant server accessories and expansion options, review the full HPE line.

Frequently Asked Questions

Q: What server platform is the P85638-B21 designed for?

A: The P85638-B21 is designed for the HPE ProLiant DL360 Gen12 server configured with the MR932i-P controller and 2SFF drive bay, specifically for the Box 4/5 PCIe Slot 1 position.

Q: What interface does the P85638-B21 use?

A: The P85638-B21 uses a PCIe interface, consistent with the HPE ProLiant DL360 Gen12 internal expansion architecture.

Q: Can the P85638-B21 be used in other HPE ProLiant models or Gen11 servers?

A: Based on available evidence, the P85638-B21 is specified for the DL360 Gen12 platform. Compatibility with other ProLiant generations or models is not confirmed by available documentation — verify against HPE's QuickSpecs for your specific server before ordering.

Q: How much does the P85638-B21 weigh?

A: The P85638-B21 weighs 0.20 lb, consistent with a precision PCIe stacking/interposer bracket component.

Ted Perry

The P85638-B21 is a slot-specific PCIe stacking box for the HPE ProLiant DL360 Gen12 — the kind of part that looks generic until you order the wrong one. At 0.20 lb, this is a precision mechanical/electrical interface component, not a card, and its value is entirely in being the correctly-spec'd option for the MR932i-P 2SFF Box 4/5 Slot 1 position.

Technical Highlights:

• PCIe Interface: Connects via PCIe within the DL360 Gen12 chassis, maintaining the signal path integrity required for the MR932i-P storage controller's slot 1 assignment — no adapters, no workarounds.
• Slot-Specific Design: Engineered for the Box 4/5 PCIe Slot 1 position in the DL360 Gen12 2SFF configuration — HPE stacking kits are not position-agnostic, and this one is not interchangeable with other slot assignments.
• 0.20 lb Component Weight: The sub-quarter-pound weight keeps total chassis mass within HPE's validated structural parameters for the DL360 Gen12 — relevant when rack density and rail load ratings are a constraint in high-density deployments.

Deployment Considerations:

• Confirm your DL360 Gen12 build uses the MR932i-P controller in a 2SFF bay configuration before ordering — the slot stacking kit is controller- and bay-specific, and HPE's QuickSpecs will list the exact option kit required per BOM.
• Available evidence is limited to interface type (PCIe), weight (0.20 lb), and platform context. Full dimensional and installation data should be confirmed against the HPE ProLiant DL360 Gen12 QuickSpecs prior to rack integration.

The P85638-B21 belongs in a pre-configured DL360 Gen12 server build where the MR932i-P and 2SFF layout are already locked — procurement teams building standardized rack deployments should include it in the server BOM from the outset rather than sourcing it post-build.