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

Part No:817748‑B21 Write a Review

Condition:New

Brand:HPE

Weight:2 lbs

Product Type:Ethernet Adapter (10/25 Gb)

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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

BrandHPE
SKU817748-B21
ConditionNew
Dimensions9.5 × 2.25 × 7.5 in
Weight2 lbs
CompatibilityHPE ProLiant servers with FlexLOM slot
Part Number817748‑B21
Product TypeEthernet Adapter (10/25 Gb)
Network Ports2 × SFP28
Supported Speeds10 Gb/s, 25 Gb/s
Host InterfaceFlexLOM / PCIe 3.0
Aggregate BandwidthUp to 100 Gb/s bi‑directional
Jumbo Frame SupportUp to 9.2 KB
Offload FeaturesTSO, LSO, RSS, TCP/UDP checksum, VXLAN, NVGRE, RoCE v2
Standards SupportIEEE 802.1Q, IEEE 802.3ae, 802.3ad, 802.1AB, IEEE 802.3az
Form FactorPlug‑in FlexLOM adapter
Typical Weight~0.55 kg (approx. 1.2 lb)

Warranty

Products include the manufacturer warranty where applicable. Warranty coverage, term, and service options may vary by manufacturer and product condition.

Returns

We guarantee free replacements on all new/refurbished equipment in case of any defects.

  • Returns must be requested within 30 days of the original invoice date.
  • Merchandise must be unused and in original packaging; bulk-packed and refurbished items must have unbroken sealing tape.
  • A 25% restocking fee applies to non-defective merchandise returned by mistake.
  • Discontinued, close-out, and custom printed items are non-returnable unless defective.
  • Customer is responsible for return freight costs.

View full return policy

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