HPE817747-001

(640FLR-SFP28) Dual-Port 10/25 GbE FlexibleLOM Gigabit Ethernet AdapterRefurbished

The HPE817747-001 640FLR-SFP28 adapter is a high-performance, dual-port FlexibleLOM network interface card that supports both 10 GbE and 25 GbE speeds via SFP28. Powered by the Mellanox ConnectX-4 Lx chipset, it supports up to 50 Gbps per port (100 Gbps aggregate) for virtualization hosts, database servers, and high-speed application environments. Compatible with Gen9 and Gen10 HPEProLiant and Apollo servers, this refurbished card delivers reliable throughput, advanced offload features, and future-ready flexibility at a competitive price.

Features

This adapter slots into the dedicated FlexibleLOM bay to free up PCIe lanes for other devices, providing efficient internal routing and improved airflow. Each port auto-negotiates between 10 GbE and 25 GbE depending on connected transceivers, adapting smoothly in mixed-speed environments. It supports jumbo frames up to 9.2 KB, ensuring large data payloads are transmitted efficiently. Designed for modern virtualized infrastructure, it also includes RDMA (RoCE v2), VXLAN/NVGRE tunneling, and DPDK offload support reducing CPU overhead while maintaining high throughput

Advanced Options

Built with enterprise-grade networking in mind, this adapter delivers high reliability in dense server environments. The robust ConnectX-4 Lx controller ensures efficient packet processing with minimal latency while supporting virtualization acceleration technologies such as SR-IOV,

Product Key Features

• • 2 × SFP28 ports supporting 10 GbE or 25 GbE per port

  • Mellanox ConnectX-4 Lx controller

  • Up to 50 Gbps per port (100 Gbps aggregate)

  • FlexibleLOM form factor (internal mezzanine connection)

  • Supports jumbo frames (up to 9.2 KB MTU)

  • Protocol offloads: RoCE v2, VXLAN/NVGRE, RSS, TSO/LSO, VLAN tagging

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Reliability & Performance

VMQ, and NetQueue. Diagnostic features like link/activity LEDs and SNMP support enhance manageability. At ~9.7 W typical power consumption, it offers energy-efficient operation in blade or rack servers without overheating. Refurbished units are fully tested and backed by a short-term warranty for dependable integration into HPEsystems

Key Features :

• Dual-port SFP28 (2 × 25 Gb or 10 Gb Ethernet)

• FlexibleLOM form factor for HPEblade/rack systems

• PCIe 3.0 x8 internal interface

• Jumbo frames up to ~9.2 KB MTU

• RDMA, VXLAN/NVGRE, VLAN, QoS, RSS, LSO/TSO offload

• SNMP, PXE boot, link/activity LED indicators

Specification	Details
Model Number	817747-001 (Option 817749-B21, Spare 840139-001)
Product Type	Dual-Port Gigabit Ethernet Adapter(FlexibleLOM)
Controller	Mellanox ConnectX-4 Lx
Ports	2 × SFP28 (auto 10 GbE or 25 GbE)
Max Throughput	Up to 50 Gbps per port, 100 Gbps aggregate
Jumbo Frame Support	Up to ~9.2 KB MTU
Bus Interface	FlexibleLOM (PCIe 3.0 x8 internal)
Offload & Features	RDMA (RoCE v2), VXLAN/NVGRE, SR-IOV, RSS, TSO/LSO, VLAN, QoS
Power Consumption	~9.7 W
Diagnostic Support	SNMP, link/activity LED status indicators
Server Compatibility	ProLiant DL360/380/560/580 Gen9 & Gen10; Apollo Gen9/Gen10 servers
Form Factor	FlexibleLOM mezzanine, low-profile
Power & Thermal Profile	<10 W typical, optimized for blade chassis