HPE 872340-B21 9-Slot Secondary Riser Kit for DL580 Gen10
Overview
The HPE 872340-B21 is a secondary PCIe riser kit designed to expand the I/O capacity of the HPE ProLiant DL580 Gen10 server. Where a base DL580 Gen10 configuration limits expansion slot availability, this 9-slot riser adds the physical PCIe infrastructure needed to populate additional HBAs, NICs, GPU accelerators, or storage controllers — without requiring a chassis swap or platform change. If your DL580 Gen10 build is hitting slot constraints on a high-density workload like virtualization, storage networking, or AI inference, the 872340-B21 is the targeted fix.
Compatibility
Designed specifically for the HPE ProLiant DL580 Gen10 server platform. This riser kit is not cross-compatible with earlier DL580 generations (Gen8, Gen9) or other HPE ProLiant families (DL560, DL380, DL360). Verify your server's chassis revision and existing riser population before ordering — the DL580 Gen10 supports multiple riser configurations, and slot conflicts with an already-installed primary riser are possible depending on current build. Consult the HPE DL580 Gen10 QuickSpecs or Maintenance and Service Guide to confirm the target riser bay is unpopulated and the 872340-B21 is the correct option code for your expansion scenario.
