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HPE P08446-B21 Dual port SFP Ethernet Adapter View larger
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HPE P08446-B21 Ethernet 10 Gb 2‑Port 524SFP+ Gigabit Ethernet Adapter

P08446-B21

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Detailed Specifications

HPE P08446-B21

Ethernet 10 Gb 2‑Port 524SFP+ Gigabit Ethernet Adapter

The HPE P08446‑B21—also known as the 524SFP+ dual-port adapter—is a high-performance 10 Gigabit Ethernet card providing two SFP+ ports via optical interfaces. Powered by the Mellanox ConnectX‑4 Lx controller (QL41401‑A2G), it delivers full line-rate throughput while minimizing CPU load with advanced offloads. Ideal for virtualization, cloud workloads, and high-speed storage, it brings reliable, low-latency connectivity to HPE ProLiant Gen10 servers and beyond

Features

This PCIe 3.0 ×8 plug-in adapter employs two SFP+ ports to support optical fiber connections, offering backward compatibility with 1/2.5/5/10 GbE via auto-negotiation. Key virtual networking protocols such as VXLAN, NVGRE, GENEVE, and RDMA (RoCE, RoCEv2, iWARP) are supported, enhancing VM migration and storage offloads. The adapter also supports SR‑IOV, RSS, VMQ, and DPDK for optimized multi-tenant and cloud performance

Advanced Options

Engineered for dense virtualization and high-throughput workloads, this adapter delivers sustained 10 Gbps on each port with ultra-low latency. The ConnectX‑4 Lx chipset offloads many CPU tasks, improving overall VM performance and host efficiency.

Product Key Features

  • 2 × 10 GbE SFP+ ports (optical fiber)

  •  Mellanox ConnectX‑4 Lx (QL41401‑A2G) network processor

  •  PCI Express 3.0 ×8 host interface

  •  Virtualization offloads: SR‑IOV, RSS, VMQ, DPDK, tunnel offloading

  •  RDMA support: RoCE, RoCEv2, iWARP for low-latency traffic

  •  Secure boot and firmware integrity features for compliance

Reliability & Performance

Tunnel offloads and secure networking protocols provide scalability without overhead. Supported by thermal-aware firmware and integrated with HPE management standards, it's optimized for use in ProLiant Gen10 platforms and ensures long-term stability under high-load conditions

Key Features :

    • Dual optical SFP+ ports for 10 GbE fiber links

    • PCIe 3.0 ×8 plug-in adapter format

    • Mellanox ConnectX‑4 Lx QL41401‑A2G chipset

    • Supports jumbo frames up to ~9.6 KB MTU

    • Offload: SR‑IOV, RSS, VMQ, DPDK, tunnel acceleration

    • RDMA protocols: RoCE, RoCEv2, iWARP support

    • Security features: secure boot, firmware signing

    • Compatible with HPE Sea of Sensors for thermal management

    • LED indicators: link/activity, status

    • Compatible brackets: full height & low-profile

SpecificationDetails
Model Number P08446‑B21
Product Type 10 GbE Dual‑Port SFP+ Fiber Gigabit Ethernet Adapter
Controller / Chipset Mellanox ConnectX‑4 Lx (QL41401‑A2G)
Host Interface PCI Express 3.0 ×8
Ports 2 × 10 GbE via SFP+
Supported Media Optical fiber (SFP+ modules)
Throughput Up to 10 Gbps per port
Jumbo Frame Support Up to ~9,600-byte MTU
Virtualization Features SR‑IOV, VMQ, RSS, DPDK, tunnel offload (VXLAN/NVGRE/GENEVE)
RDMA Support RoCE, RoCEv2, iWARP
Security Secure boot, signed firmware
LED Indicators Link/activity, status
Compatibility ProLiant Gen10/Gen10+ servers, ML350, DL380, etc.
Weight & Form Factor ~290 g; full-height & low-profile included
Operating Temperature 0 °C to 55 °C
Standards Compliance IEEE 802.3ae, 802.1Q, 802.3ad, QoS, IPv6, LACP, more

  • 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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