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HPE 817748-B21 Ethernet 10GB 2-Port SFP28 Network Adapter View larger

HPE 817748-B21 Ethernet 10/25 Gb Dual-Port 640FLR-SFP28 Adapter

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Dual‑port 10/25 Gb Ethernet FlexLOM adapter
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Detailed Specifications

HPE 817748‑B21 Ethernet 10/25Gb 2‑Port 640FLR‑SFP28 Adapter

Overview

The HPE 817748‑B21 is a high‑speed server network adapter designed for HPE ProLiant servers, offering two SFP28 ports capable of operating at 10 or 25 Gb/s. It supports 25 Gb Ethernet and full‑feature networking offloads, making it suitable for virtualization, data‑center, or cloud infrastructure where bandwidth and efficiency are critical. The adapter is provided in a FlexLOM form factor for direct motherboard integration in supported server platforms and supports standard LAN features along with newer overlay and RDMA offloads.

Key Features

  • Dual SFP28 ports supporting 10 Gb and 25 Gb speeds

  • FlexLOM form factor for compact integration in HPE servers

  • PCIe 3.0 interface delivering up to 100 Gb/s bi‑directional aggregate bandwidth

  • Supports virtualization and overlay networking offloads (VXLAN, NVGRE, RoCE)

  • Full protocol offload support including TSO, RSS, LSO, and jumbo frames

Technical Specifications

SpecificationDetails
Brand HPE
Part Number 817748‑B21
Product Type Ethernet Adapter (10/25 Gb)
Network Ports 2 × SFP28
Supported Speeds 10 Gb/s, 25 Gb/s
Host Interface FlexLOM / PCIe 3.0
Aggregate Bandwidth Up to 100 Gb/s bi‑directional
Jumbo Frame Support Up to 9.2 KB
Offload Features TSO, LSO, RSS, TCP/UDP checksum, VXLAN, NVGRE, RoCE v2
Standards Support IEEE 802.1Q, IEEE 802.3ae, 802.3ad, 802.1AB, IEEE 802.3az
Compatibility HPE ProLiant servers with FlexLOM slot
Form Factor Plug‑in FlexLOM adapter
Typical Weight ~0.55 kg (approx. 1.2 lb)

  • 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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