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HPE

HPE Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter

$840.00
$688.33 SAVE $151.67
None availableas of 10/17/2026

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

About the HPE 640FLR-SFP28

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.

Technical specifications

Technical Specifications of the HPE 640FLR-SFP28

General Information

General Information specifications
Manufacturer Hewlett Packard Enterprise
Manufacturer Part Number 817749-B21
Manufacturer Website Address http://www.hpe.com
Brand Name HPE
Product Model 640FLR-SFP28
Product Name Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter
Product Type 25Gigabit Ethernet Card

Interfaces/Ports

Interfaces/Ports specifications
Host Interface PCI Express 3.0 x8
Total Number of Ports 2

I/O Expansions

I/O Expansions specifications
Expansion Slot Type SFP

Media & Performance

Media & Performance specifications
Media Type Supported Optical Fiber

Physical Characteristics

Physical Characteristics specifications
Form Factor FlexibleLOM
Height 0.5"
Width 3"
Depth 4.8"
Weight (Approximate) 3.52 oz

Miscellaneous

Miscellaneous specifications
Device Supported Server

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.