HPE P59620-B21 DL325 Gen11 2SFF x4NVMe OCP2 Cable Assembly
The HPE P59620-B21 is a factory-configured internal cable assembly designed for the HPE ProLiant DL325 Gen11 server platform, enabling a 2SFF (Small Form Factor) drive bay configuration with four NVMe storage paths and OCP 2.0 mezzanine connectivity. If you are expanding or replacing internal cabling in a DL325 Gen11 chassis to support NVMe-based storage and an OCP 2.0 network adapter, this is the correct HPE-sourced component for that configuration. Explore the broader HPE server components catalog for compatible accessories and upgrades.
Overview
The P59620-B21 (often searched as P59620 B21) is a genuine HPE spare and configuration cable kit targeted at integrators building or servicing DL325 Gen11 deployments. The DL325 Gen11 is a single-socket AMD EPYC platform commonly deployed in edge compute, virtualization, and storage-dense rack environments. This cable assembly supports the 2SFF front bay layout, routes four NVMe device connections, and accommodates an OCP 2.0 slot — keeping the signal path native HPE rather than relying on third-party alternatives that may not be validated for the chassis. For rack server accessories and structured cabling in high-density deployments, using platform-matched components avoids compatibility issues at commissioning time.
Key Features
- Platform-specific fit: Designed for the DL325 Gen11 chassis — not a universal cable. Installing the correct HPE-sourced assembly means validated routing clearances and connector keying, reducing the risk of fitment issues inside a dense 1U enclosure.
- x4 NVMe connectivity: Supports four NVMe drive paths in the 2SFF bay configuration — relevant when provisioning all-flash storage for latency-sensitive workloads like VM datastores or surveillance video recording. Pair with compatible NVR storage platforms when this server is deployed in a recording role.
- OCP 2.0 mezzanine support: Routes connectivity for an OCP 2.0 network adapter, keeping the network path off a standard PCIe slot and preserving expansion capacity elsewhere in the chassis.
- Compact, lightweight component: At 0.08 lb, this is a cable/flex assembly — not a drive cage or backplane. Plan for it accordingly in your BOM; the drives, backplane, and OCP adapter are separate line items.
Integration & Compatibility
This assembly is validated for the HPE ProLiant DL325 Gen11 server. Verify your chassis generation before ordering — DL325 Gen10 Plus and earlier use different internal cable routing and connector schemes. The OCP 2.0 slot compatibility also means this does not support OCP 3.0 adapters. For HPE ProLiant platform builds, cross-reference the HPE QuickSpecs for the DL325 Gen11 to confirm the correct cable option code for your specific drive bay and riser combination. A server accessory planning guide can help map drive bay configurations to the correct cable kit SKU before you commit to a build.
Frequently Asked Questions
Q: What server platform is the HPE P59620-B21 compatible with?
A: The P59620-B21 is designed for the HPE ProLiant DL325 Gen11 server. It is not validated for earlier DL325 generations (Gen10 or Gen10 Plus), which use different internal cable assemblies.
Q: Does P59620-B21 support OCP 3.0 network adapters?
A: No. The assembly supports OCP 2.0 mezzanine connectivity. OCP 3.0 adapters use a different form factor and are not compatible with this cable kit.
Q: How many NVMe drives does this cable assembly support?
A: The P59620-B21 supports up to four NVMe drive connections in a 2SFF (Small Form Factor) front bay configuration within the DL325 Gen11 chassis.
Q: Is this a complete storage kit or just the cable assembly?
A: This is a cable assembly only (0.08 lb). NVMe drives, drive backplanes, and OCP network adapters are separate components and must be ordered independently.
Q: Where is the HPE P59620-B21 manufactured?
A: Country of origin is listed as CN, CZ, JP, MX, or SG depending on manufacturing allocation — a standard multi-country origin declaration for HPE platform accessories.
The P59620-B21 is one of those components that looks trivial on a BOM until it's missing at rack-build time. As an internal cable assembly for the DL325 Gen11 supporting 2SFF NVMe bays and OCP 2.0 connectivity, it is chassis-specific — substituting a generic or prior-gen cable is not a supported path and will create problems during HPE firmware validation.
Technical Highlights:
- Weight (0.08 lb): This is a flex/cable assembly, not a mechanical cage component — factor that into your parts staging; it ships separately from drive backplanes and should be inventoried accordingly on multi-server builds.
- 2SFF + x4NVMe layout: Four NVMe paths in a 2SFF bay means you can run a small all-flash front-storage configuration without consuming the rear bays — useful in 1U edge deployments where bay count is limited.
- OCP 2.0 routing: Keeping the network adapter on the OCP slot rather than a PCIe riser preserves a full-length slot for other expansion — relevant when the server doubles as a compute and capture node in a surveillance recording architecture.
Deployment Considerations:
- Confirm chassis option code against HPE QuickSpecs before ordering — the DL325 Gen11 has multiple cable kit variants depending on drive bay count and riser configuration; P59620-B21 is specific to the 2SFF x4NVMe OCP2 combination.
- OCP 2.0 and OCP 3.0 are electrically and physically incompatible — if your network adapter is OCP 3.0, this cable assembly will not work regardless of chassis generation.
Best fit: DL325 Gen11 deployments in edge or branch-office rack environments where NVMe-based local storage and a dedicated OCP network adapter are both required in a single 1U footprint — common in distributed surveillance recording nodes or compact virtualization clusters.
