HPE P27090-B21 DL380 Gen10+ Dual-Processor x16 SlimSAS Primary Riser Kit

Overview

The P27090-B21 is a SlimSAS primary riser kit designed for HPE ProLiant DL380 Gen10+ servers configured with two processors. It provides the x16 SlimSAS interface needed to expand storage or I/O connectivity within the server chassis — a required component when commissioning a dual-socket DL380 Gen10+ for workloads that depend on additional PCIe or NVMe-attached storage expansion beyond the base configuration. Without the correct primary riser kit, the secondary processor's PCIe lanes cannot be utilized, leaving expansion slots non-functional.

Compatibility

The P27090-B21 is designed specifically for the HPE ProLiant DL380 Gen10+ (2U rack server) in a dual-processor (2P) configuration. It is not interchangeable with Gen10 (non-Plus) riser kits or single-processor DL380 Gen10+ builds — confirm the installed processor count and chassis revision before ordering. It is also distinct from secondary and tertiary riser options in the HPE ProLiant accessory line; verify the slot designation and kit type against the server's QuickSpecs before procurement.

Installation Notes

Installation requires both processors to be seated before the riser is functional. Consult the DL380 Gen10+ maintenance and service guide for slot sequencing — primary risers must be installed before secondary. Handle the SlimSAS connector with care; the interface is retention-clip secured and requires straight extraction to avoid pin damage. Weight is 0.45 lb, making it straightforward to handle during rack servicing, but static precautions apply as with all server hardware.