SKU: 817749-B21 Categorie:

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    din 2007



    • Obsolete Date 31-07-2022
    • End of support date 31-07-2027


    • Weight 0.09 kg
    • Supported Cables 10Gb – Active Optical Cable (AOC) 10Gb – Direct Attach Copper (DAC) 25Gb – Active Optical Cable28 (AOC28) 25Gb – Direct Attach Copper28 (DAC28)
    • Bus type PCIe Gen3 x8
    • Connector type SFP28
    • IEEE compliance 802.3ae, 802.1Q, 802.3x, 802.1p, 802.3ad/LACP, 802.1AB(LLDP), 802.1Qbg, 802.1Qbb, 802.1Qaz, 802.3an
    • Server type supported ProLiant servers
    • Power Typical – 10.5 W Max – 14.0 W
    • Network processor Mellanox CX4LX
    • Data rate 25Gb
    • Number of ports 2-port
    • Form factor A-LOM
    • Compatible operating systems Windows:Microsoft Windows Server 2012, 2012 R2, 2008, 2008 R2 w/ SP1 (x64)Microsoft Windows Hyper-V 2008 R2 w/SP1, 2012, 2012 R2Linux:Red Hat Enterprise Linux 6.5, 6.6 (x64)SUSE Linux Enterprise Server 11, SP3 ( x64)HyperVisors:Citrix XenServer 6.5 (Creedence)Citrix XenServer (Naples) (x64)
    • Product dimensions (H x W x D) 0.54 x 4.77 x 3.02 in
    • Minimum dimensions ( H x W x D) 1.37 x 12.11 x 7.67 cm
    • Technology Network processor
    • Weight 0.22 lb



    Stuck in network traffic at 10Gbps? Time to take the Express Lane with HPE 25GbE Adapters. With the rise in volume of mobile data and video and the frequency in which it’s accessed, legacy technologies are struggling to handle the increased throughput and lack the capabilities to cost-effectively scale. Current approaches to managing the increasing data center traffic require higher bandwidth and are cost prohibitive, keeping organizations from easily growing as their needs grow. The HPE Ethernet 25Gb 2-port 640 FLR-SFP28 Adapter is a FlexibleLOM form factor for select HPE ProLiant Server DL family of rack and HPE Apollo Servers that delivers high-performance solutions to Telco, services providers, financial institutions and enterprises to meet higher bandwidth demand.


    Address the Increasing Demand for an Overlay Network

    Contains VMA, an included firmware with many benefits such as lower latency, higher throughput, improved CPU utilization and minimal buffer copies between user data and hardware.

    The HPE Ethernet 25Gb 2-port 640 FLR-SFP28 Adapter bypasses the TCP/IP stack and removes of a data copy step reducing overall latency to deliver accelerated performance for applications such as Microsoft® Hyper-V® Live Migration, Microsoft SQL® and Microsoft SharePoint with SMB Direct.

    More Efficient and Faster Way to Send Data with RDMA Over Converged Ethernet (RoCE)

    The HPE Ethernet 25Gb 2-port 640 FLR-SFP28 Adapter reduces the impact of overlay networking on host performance with tunnel offload support for VXLAN and NVGRE, increasing VM migration flexibility and network scale with minimal impact to performance.

    Decouples virtual overlay network layer from the physical NIC performance.

    Auto negotiates to 10GbE for immediate future proofing.

    The HPE Ethernet25Gb 2-port 640 FLR-SFP28 Adapter reduces system latency for improved performance specifically for high-frequency trading operations while maintaining high message rates and hundreds of simultaneous connections.

    Lower Latency and Higher Throughput with Messaging Accelerator (VMA)

    RDMA over Converged Ethernet (RoCE) for greater server efficiency and lower latency.

    Compatible products


    Additional information




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