The HPE InfiniBand (HDR100/EDR) and Ethernet 100Gb Dual-Port QSFP56 PCIe 4.0 Adapter is a high-performance VPI (Virtual Protocol Interconnect) network adapter powered by the Mellanox ConnectX-6 VPI chipset (MCX653106A-ECAT). Available under HPE part numbers P23666-B21, P24752-001, and P24249-001, these identifiers represent the same physical adapter offered as Option, Spare, and Assembly SKUs.

Designed for high-performance computing (HPC), AI, storage, and data center workloads, this adapter delivers ultra-low latency, high bandwidth, and flexible protocol support across InfiniBand and Ethernet networks.

Key Specifications

• HPE Part Numbers: P23666-B21 (Option), P24752-001 (Spare), P24249-001 (Assembly), P23666-H21

• Manufacturer Model: Mellanox MCX653106A-ECAT

• Chipset: NVIDIA Mellanox ConnectX-6 VPI

• Device Type: Network Interface Card (NIC) / Host Channel Adapter (HCA)

• Ports: 2 × QSFP56

• Data Rate: Up to 100 Gbps per port

Protocol & Connectivity Support

• VPI Support: InfiniBand and Ethernet on the same adapter

• InfiniBand Speeds: SDR, DDR, QDR, FDR, EDR, HDR100

• Ethernet Speeds: 1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 100GbE

• Cabling: QSFP56 Direct Attach Copper (DAC) and Active Optical Cables (AOC)

Interface & Performance

• Host Interface: PCI Express 4.0 x16

  • Backward compatible with PCIe Gen 3.0, 2.0, and 1.1

• Latency: Sub-600 nanoseconds

• Power Consumption:

  • Typical: ~17.7 W (with passive cables)

  • Maximum: ~22.4 W

Advanced Features

• RDMA over Converged Ethernet (RoCE) for ultra-low latency and high throughput

• SR-IOV virtualization support for cloud and containerized environments

• NVMe over Fabrics (NVMe-oF) hardware offloads

• VLAN support and advanced traffic management

• Optimized for HPC, AI/ML, storage, and data analytics workloads

Physical & Compatibility

• Form Factor: Low-Profile (LP) stand-up PCIe card

• Dimensions: 6.6 in × 2.71 in (167.65 mm × 68.90 mm)

• Supported Operating Systems:

  • Microsoft Windows

  • Red Hat Enterprise Linux

  • CentOS

  • FreeBSD

• Platform Compatibility: Designed for HPE ProLiant Gen10 Plus and newer servers

The HPE Mellanox ConnectX-6 VPI 100Gb Adapter is an ideal solution for enterprises seeking a single, flexible adapter that seamlessly supports both InfiniBand and Ethernet, delivering exceptional performance, scalability, and reliability in modern data center and HPC environments.