HPE665243-B21

Ethernet 10 Gb 2-Port 560FLR-SFP+ FlexibleLOM Network Adapter

The HPE665243-B21 is a dual-port 10 Gigabit Ethernet FlexibleLOM adapter offering two SFP+ optical or DAC copper ports. Powered by the Intel 82599 controller, it connects via PCIe 2.0 ×8 in ProLiant Gen8/Gen9 rack servers. Delivering full line-rate 10 Gbps per port, this compact low-power card is ideal for virtualization, server uplinks, and high-throughput workloads. Its FLR design optimizes space and energy efficiency in dense data center deployments.

Features

Designed specifically for HPEProLiant Gen8-Gen9 rack and scale-out servers, the 560FLR-SFP+ provides near 40 Gb/s aggregate bi-directional bandwidthturn0search12turn0search4turn0search6. It supports both Direct Attach Copper (DAC) and SR/LR SFP+modules via optical cages. Key virtualization features include SR-IOV, VMware NetQueue, Microsoft VMQ, RSS, MSI-X, jumbo frames up to 9 KB, TSO/LSO, checksum offloads, VLAN tagging, LACP teaming, PXE boot, and Wake-on-LAN. Its design aligns with HPESea of Sensors for optimized thermal and power performanceturn0search4turn0search2.

Advanced Options

Built on the Intel 82599 chipset, the 665243-B21 delivers enterprise-grade network throughput with minimal latency. Its hardware offloads minimize CPU usage in virtualized and storage-heavy environments, while jumbo frames and link aggregation improve

Product Key Features

• Dual 10 GbE SFP+ ports (optical SR/LR or DAC support)

• Intel 82599 controller delivering up to 40 Gb/s aggregate

• FLR form factor, PCIe 2.0 ×8 interface (compatible with ×4)

• Advanced offloads: SR-IOV, RSS, MSI-X, TSO/LSO, checksum offloads

• Networking features: VLAN, jumbo frames, LACP, IPv6, PXE, WOL

• SNMP management support and LED indicators

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Reliability & Performance

bandwidth efficiency. Thermal and power compliance with HPESea of Sensors ensures consistent operation under load. Refurbished units are OEM-tested and typically include a 90-day warranty; new units may carry longer or lifetime supportturn0search12turn0search2turn0search3.

Key Features :

• 2 × 10 GbE SFP+ ports (optical or DAC support)

• Intel 82599 (X520-DA2) network controller

• FlexibleLOM form factor, PCIe 2.0 ×8 interface

• SR-IOV, RSS, MSI-X, jumbo frames, TSO/LSO offloads

• VLAN tagging, NIC teaming, PXE, Wake-on-LAN

• SNMP management and port link/activity LEDs included

Specification	Details
Model Number	665243-B21 (Spare PN 669281-001)
Product Type	Dual-Port 10 GbE FlexibleLOM SFP+Network Adapter
Controller Chipset	Intel 82599 (X520-DA2)
Host Interface	PCI Express 2.0 ×8 (backward-compatible with ×4)
Ports	2 × SFP+ (supporting SR/LR optics or DAC)
Port Speed	10 Gbps per port; ~20 Gbps full-duplex
Aggregate Throughput	40 Gbps theoretical bi-directional
Virtualization Features	SR-IOV, VMware NetQueue, Microsoft VMQ, RSS
Offload Capabilities	TCP/UDP checksum, TSO/LSO, MSI-X, time stamping (IEEE 1588)
Networking Features	VLAN tagging, jumbo frames (up to 9 KB), link aggregation (LACP), IPv6
Boot/Power Features	PXE boot, Wake-on-LAN (port 1 only in S5 state)
Power Consumption	Low power design per HPEstandards (~10 W typical)
Supported Servers	ProLiant Gen8/Gen9 (DL120/160/180/360/380/560/580), Apollo Gen9 series
Indicators & Diagnostics	Port status/link activity LEDs; SNMP support
Form Factor & Bracket	FlexibleLOM, includes low- and full-profile bracket
Warranty	90-Day (refurbished); extended/lifetime support for new units