HPE P51911-B21 – PCIe Riser Power Cable

HPE P51911-B21 – PCIe Riser Power Cable

Overview

HPE P51911-B21 is a PCIe riser power cable used in HPE ProLiant server platforms to provide power connectivity for riser assemblies supporting PCIe expansion cards. It enables stable electrical delivery between the system board and riser modules in enterprise server configurations.

It is designed for data center environments where reliable PCIe expansion is required for networking cards, storage controllers, or GPU/accelerator add-in cards. The cable ensures proper power distribution within modular server architectures.

It is deployed in HPE ProLiant DL360/DL380 Gen10-class systems depending on configuration, supporting internal riser-based expansion layouts. Installation is performed during server assembly or hardware servicing by qualified technicians.

Typical Deployment Scenarios

• PCIe riser power delivery in HPE servers
• Enterprise server expansion card installations
• Data center hardware maintenance and upgrades
• Networking and storage adapter deployments

Specifications

Compatibility / Ecosystem

Compatible with select HPE ProLiant Gen10 server platforms using PCIe riser-based expansion architecture. Exact compatibility depends on chassis configuration, riser type, and installed expansion components. It is part of the HPE modular server ecosystem for internal power and expansion connectivity.