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  6. Item#: 9SIC899M8C4198

  • $66.00
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    Eth 10/25Gb 2P 640FLR-SFP28 Ad

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    • HPE 25 Gigabit Ethernet x 2 Adapter SFP28
    • Extended Message-Signaled Interrupts (MSI-X), Full duplex mode, IPv4 support, IPv6 support, Jumbo Frames support, LACP support, Large Send Offload (LSO), LLDP support, Network Virtualization using Generic Routing Encapsulation (NVGRE)
    • PXE support, QoS tagging, Quality of Service (QoS), RDMA over Converged Ethernet (RoCE), RDMA over Converged Ethernet (RoCE) v2, Receive Side Scaling (RSS), TCP Segmentation Offload (TSO), TCP/IP checksum offload, TCP/IP offloading, UDP/IP offloading, UEFI support
    • FlexibleLOM
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    HPE 25 Gigabit Ethernet x 2 Adapter SFP28
    Extended Message-Signaled Interrupts (MSI-X), Full duplex mode, IPv4 support, IPv6 support, Jumbo Frames support, LACP support, Large Send Offload (LSO), LLDP support, Network Virtualization using Generic Routing Encapsulation (NVGRE)
    PXE support, QoS tagging, Quality of Service (QoS), RDMA over Converged Ethernet (RoCE), RDMA over Converged Ethernet (RoCE) v2, Receive Side Scaling (RSS), TCP Segmentation Offload (TSO), TCP/IP checksum offload, TCP/IP offloading, UDP/IP offloading, UEFI support
    FlexibleLOM

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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    Return Policies

    • Return for refund within: 30 days
    • Return for replacement within: 30 days
    • This item is covered by NEXBUILD Return Policy

    Manufacturer Contact Info

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    The HPE 640FLR-SFP28 is a dual-port 10/25Gb Ethernet adapter with SFP28 connectivity and FlexibleLOM form factor, suited to compatible servers that need high-bandwidth network connections and features such as RoCE and RoCE v2.

    Recommended For

    • Operators of compatible HPE ProLiant or Apollo servers who need two 10/25GbE links for faster server-to-switch connections or links between servers.
    • Virtualization and cloud-server operators moving heavy network traffic between hosts; HPE positions the adapter for I/O-intensive workloads and lists RoCE, SR-IOV, and virtualization features.
    • Server administrators moving large storage, database, or backup traffic who can use 10/25GbE links; HPE lists RoCE, SMB Direct, and jumbo-frame support for these data-intensive tasks.
    • Homelab builders connecting servers over SFP28 DAC or fiber who want a 10Gb-to-25Gb upgrade path and are prepared to check cable, transceiver, and device compatibility.

    Real-World Use Scenarios

    • For a compatible HPE ProLiant server moving to 25GbE, connect the adapter to a matching switch and SFP28 link to increase server-to-network capacity; it can also run at 10GbE where the existing network has not yet moved to 25GbE.
    • In a virtualized server handling many VM or container network flows, use its offloads and receive-side scaling to help move packet-processing work from the host CPU; the practical benefit depends on the server workload and network configuration.
    • For a server moving data to network storage, use the adapter’s RoCE or RoCE v2 support in a compatible, correctly configured fabric; this can support low-overhead data transfers, but the storage, switches, drivers, and network settings must also support the chosen setup.
    • When a server needs two network links for a supported switch configuration, connect both ports and configure LACP to aggregate links or provide link-level resilience; the result depends on matching configuration at the switch and server.
    • For network-based server deployment, use PXE support to boot a compatible system from the network for installation or provisioning, reducing the need to start setup from local removable media.

    Spec Summary

    AttributeValue
    First Listed on NeweggOctober 09, 2026