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Hewlett Packard Enterprise

Hewlett Packard Enterprise 817749-B21

HPE 640FLR-SFP28 25Gigabit Ethernet Card for Server - SFP - FlexibleLOM - PCI

MPN817749-B21TransceiversUpdated

Key facts

Part number
817749-B21
Brand
Hewlett Packard Enterprise
Category
Transceivers
Price
AUD 2,222≈ USD 1,546 RRP
Availability
On request — ask for a quote

The Hewlett Packard Enterprise 817749-B21 is a transceiver listed on tprice.co. RRP AUD 2,222≈ USD 1,546 (Oct 2026). Request a quote for volume pricing, or sell us your used transceivers.

Overview

HPE 640FLR-SFP28 25Gigabit Ethernet Card for Server - SFP - FlexibleLOM - PCI Express 3.0 x8 - 2 Port(s) - Optical Fiber

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 Gen9 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.

Features

Address the Increasing Demand for an Overlay Network

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.

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

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.

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

Lower Latency and Higher Throughput with Messaging Accelerator (VMA)

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.

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.

  • This 8000MB/s bandwidth adapter is ideal for PCs with PCI Express 3.0 x8 slots, ensuring top level network connectivity for your desktops
  • Supports optical fibre cable to span longer distances and provides data transmission rates par excellence between servers and network components
  • Use this 25Gigabit Ethernet card to enjoy an affordable and power efficient solution for server connectivity
  • This dual port 25gigabit ethernet card lets you add two network ports using a single expansion slot to a client, server or workstation

Specifications

General

Expansion Slot Type
SFP
Product Type
25Gigabit Ethernet Card

Manufacturer Website Address

Manufacturer
Hewlett Packard Enterprise
Product Model
640FLR-SFP28
Product Name
Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter
Brand Name
HPE
Total Number of Ports
2
Media Type Supported
Optical Fiber
Environmentally Friendly
Yes
Weight (Approximate)
99.8 g
Form Factor
FlexibleLOM
Height
13.7 mm
Width
76.2 mm
Depth
121.9 mm

Price history

Latest
AUD 2,222≈ USD 1,546
Oct 2026
Lowest recorded
AUD 2,222≈ USD 1,546
Highest recorded
AUD 2,222≈ USD 1,546
Recorded
2026
1 price point

AUD 2,222 rrp, recorded

Why buy from Prology

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  • Warranty includedParts are covered by a Prology warranty – ask us for the terms.
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  • Real people, quick repliesQuotes and answers within 1 business day.

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