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HPE P25961-B21 QSFP28 100GB Network Adapter View larger

HPE P25961-B21 Dual‑Port 100 Gb QSFP28 Ethernet Network Adapter

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HPE P25961-B21 – Dual-port 100 Gb/s QSFP28 Ethernet adapter with PCIe 4.0 ×16 for HPE server platforms.
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Detailed Specifications

HPE P25961-B21 Dual-Port 100 GbE Ethernet Network Adapter

Overview

The HPE P25961-B21 is a dual-port 100 Gb/s Ethernet adapter designed for HPE server platforms requiring high aggregate throughput. It features two QSFP28 ports and a PCI Express 4.0 ×16 host interface, delivering up to 200 Gb/s total bandwidth. The adapter supports advanced offload features such as RDMA/RoCE, SR-IOV and tunnel offloads, making it suitable for virtualization, storage fabrics and cloud data-centre deployments. It is compatible with HPE ProLiant and Apollo servers and integrates into HPE networking ecosystems.

Key Features

  • Two QSFP28 ports with 100 Gb/s per port (200 Gb/s aggregate)

  • PCI Express 4.0 ×16 host interface for full bandwidth support

  • Supports RDMA/RoCE, SR-IOV and tunnel offloads for reduced CPU load

  • Built on Mellanox ConnectX-6 EN chipset for high performance

  • Compact full-length low-profile PCIe plug-in format

Specifications

SpecificationValue
Brand Hewlett Packard Enterprise (HPE)
Part Number P25961-B21
Product Type Dual-Port 100 GbE Ethernet Network Adapter
Data Transfer Rate 100 Gb/s per port (200 Gb/s aggregate)
Ports 2 × QSFP28
Host Bus Interface PCI Express 4.0 ×16
Chipset Mellanox ConnectX-6 EN
Supported Offloads RDMA/RoCE, SR-IOV, tunnel offloads (VXLAN/NVGRE)
Compliance Standards IEEE 802.3by/bj/bm/ba
Typical Power Consumption ≤ 9 W
Operating Temperature 0 °C to 55 °C
Compatibility HPE ProLiant / HPE Apollo server platforms
Dimensions (L × W) ~6.6 in × 2.7 in
Weight ≈ 0.5 lbs
Warranty 90-Day Standard Warranty

  • All packages are shipped same day if the order is placed before 3PM CST

    We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx

    Overnight Shipping take 1 business day
    Expedited Shipping take about 2-3 business days
    Ground shipping take about 3-5 business days

    You can select the desired service level at Checkout and we will make sure the package is shipped as per the selected service level.

  • We Accept

    i) PayPal
    ii) All Credit & Debit Cards
    iii) Purchase Orders
    iv) Check
    v) Bank Transfer/ACH/Wire Transfer

    To process the order through Paypal/CC, you can simply checkout and process the payment.

    If you want to issue us Purchase Order/Check/Bank Transfer, Please contact us at the following details

    Call: 469.458.9636
    Email: sales@dcsupplies.net

  • If you have any queries, please contact us at the following details and we will be happy to help

    Call
    469.458.9636
    469.458.9638

    Email
    sales@dcsupplies.net

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