HPE DL38X Gen10 Plus Slot1 x16 Adder for Slot2/3 Riser Kit

The HPE P14600-B21 is a Slot1 x16 Adder for Slot2/3 Riser Kit that lets you unlock one additional PCI Express x16 slot inside selected HPE ProLiant Gen10 Plus servers. By adding this riser card, you create space for another high-performance adapter, whether that means a graphics accelerator, a high-speed network interface, or a storage controller that needs full-width bandwidth.

The kit is purpose-built for the HPE ProLiant DL380 Gen10 Plus and DL385 Gen10 Plus families, including Network Choice and Entry configurations, so fit and electrical compatibility are assured. Installation follows the same tool-less approach as other HPE risers, sliding smoothly into the designated bay and integrating with existing power and cooling paths. Once in place, the new slot appears in the server BIOS and can be populated immediately, minimising downtime during upgrades or future expansions.

Administrators who run virtualisation hosts, database nodes, or high-density compute clusters often outgrow the factory I/O budget. This riser card offers a straightforward way to add resources without moving to a larger chassis or deploying extra servers. For example, you can add a dual-port 100 Gb Ethernet card to increase east-west traffic capacity, drop in a GPU to accelerate AI inference, or install a RAID controller to extend local NVMe storage.

The card’s compact footprint of 3.4 by 13.36 by 2.29 centimetres and 0.48-kilogram weight means it has a negligible impact on airflow and system balance. In short, it gives you the headroom you need today and keeps the door open for tomorrow’s upgrades.

• Adds one PCI Express x16 slot through the Slot1 position
• Designed for HPE ProLiant DL380 Gen10 Plus and DL385 Gen10 Plus servers
• Enables extra connectivity for GPUs, NICs, or storage controllers
• Installs quickly and integrates with existing riser hardware
• Measures 3.4 cm × 13.36 cm × 2.29 cm and weighs 0.48 kg