What type of network connectivity does the HPE 665243-B21 adapter provide?

The HPE 665243-B21 is an Ethernet 10Gb 2-port 560FLR-SFP+ Adapter that provides 10 Gigabit Ethernet connectivity. It belongs to the 10Gb Ethernet SFP+ category and offers two 10Gb Ethernet ports. This makes it suitable for environments planning standardized 10Gb SFP+ server connections to switches or other network devices.

How many ports are available on the HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter?

The adapter provides two Ethernet ports, as indicated by its designation as a 2-port 560FLR-SFP+ model. Each port supports 10 Gigabit Ethernet operation. This dual-port design allows a single adapter to handle multiple network roles or provide redundant connections within a server.

What is the bus interface for the HPE 665243-B21 network adapter?

The adapter is described as a dual-port FlexibleLOM PCIe 2.0 x8 adapter. This means it connects through a PCI Express 2.0 x8 interface in a FlexibleLOM slot on supported servers. Buyers should ensure their target platforms provide compatible FlexibleLOM slots with PCIe 2.0 x8 support for correct operation.

Which form factor does the HPE 560FLR-SFP+ adapter use?

The model is categorized as a FlexibleLOM adapter, specifically a dual-port FlexibleLOM PCIe 2.0 x8 adapter. This form factor is designed for servers that accept FlexibleLOM network adapters rather than standard PCIe plug-in cards. Compatibility with the server’s FlexibleLOM slot is therefore an important consideration.

Is the HPE 665243-B21 suitable for enterprise environments?

Yes, this adapter is positioned at the enterprise product level and is categorized as a 10Gb Ethernet SFP+ network adapter for servers. Its dual-port 10Gb design and FlexibleLOM PCIe 2.0 x8 form factor align with typical enterprise requirements for standardized, high-speed server network connectivity.

665243-B21 - HPE Hewlett Packard Enterprise 665243-B21 10Gb 2-port adapter

Name: HPE Hewlett Packard Enterprise 665243-B21 10Gb 2-port adapter
Brand: HPE
SKU: 665243-B21
Price: 195 USD
Availability: InStock

665243-B21 - HPE Hewlett Packard Enterprise 665243-B21 10Gb 2-port adapter | US IT Hardware

Product overview

The HPE Ethernet 10Gb 2-port 560FLR-SFP+ Adapter 665243-B21 is an enterprise network adapter designed for environments that require 10 Gigabit Ethernet connectivity. This adapter provides two 10Gb Ethernet ports using SFP+ interfaces and is built on a FlexibleLOM PCI Express 2.0 x8 form factor, making it suitable for servers that support FlexibleLOM slots. As a dual-port adapter, it enables multiple 10Gb connections from a single card to support segmented traffic flows or redundant network paths. Positioned in the 10Gb Ethernet SFP+ category, it is appropriate for data center and server connectivity where 10Gb bandwidth is standard. With its enterprise product level, this adapter is aimed at professional IT infrastructure deployments that need consistent, high-speed wired networking between servers, switches, and storage systems without referencing specific feature sets beyond the provided specifications.

Dual 10Gb Ethernet ports for high-speed server links
FlexibleLOM form factor for compatible HPE servers
PCIe 2.0 x8 interface for data center integration
10Gb Ethernet SFP+ category network adapter
Enterprise-level design for server deployments
SKU 665243-B21 simplifies standardization

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Onboard Memory
Manufacturer part #	665243-B21
Brand	HPE
Condition	New
Model	560FLR-SFP+
Series	HPE 560FLR
Interfaces	2 x 10Gb Ethernet
Part Class	FlexibleLOM adapter
Technology	Ethernet
Form Factor	FlexibleLOM
Product Line	HPE Ethernet Adapter
Product Type	Network adapter

Compatible systems

Designed for HPE ProLiant Gen8 and later rack and scalable servers requiring dual-port 10GbE SFP+ FlexibleLOM connectivity

HPE ProLiant
Model: Gen8 Rack and scalable servers
Form factor: Rack servers
Generation: Gen8 or higher
Designed for use in HPE ProLiant Gen8 or higher Rack and scalable servers per product descriptions for 665243-B21

Best for

Data center servers
Suitable for data center servers requiring dual 10Gb Ethernet connectivity using an SFP+ based adapter in a FlexibleLOM PCIe 2.0 x8 form factor.
Virtualized hosts
Applies to virtualized hosts that benefit from two 10Gb Ethernet ports on a single enterprise network adapter to support multiple network segments.
Enterprise racks
Designed for enterprise rack infrastructures that standardize on 10Gb Ethernet SFP+ connectivity and FlexibleLOM PCIe 2.0 x8 adapters.
High-bandwidth server links
Useful for servers that need high-bandwidth 10Gb Ethernet links over SFP+ connections from a dual-port FlexibleLOM adapter.
Redundant network paths
Helps implementations that require two separate 10Gb Ethernet ports on one adapter to support redundant network paths at the server level.

Details

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Compatible Slots	1 x FlexibleLOM

Status Indicators	Port status; link activity

Supported Features	Wake on LAN; Jumbo Frames; teaming; PXE; Large Send Offload (LSO); Receive Side Scaling (RSS); TCP Segmentation Offload (TSO)

Compliant Standards	IEEE 802.3; IEEE 802.1Q; IEEE 802.1p; IEEE 802.3x; IEEE 802.3ad (LACP); IEEE 802.3ae; IEEE 802.1ab (LLDP); IEEE 802.1Qau

PCI Express Version	PCI Express 2.0 (Gen 2)

Connectivity Technology	Wired

Supported Server Platforms	HPE ProLiant Gen8 or higher Rack and scalable servers

Supported Operating Systems	Microsoft Windows Server 2008; Windows Server 2008 R2; Windows Server 2012; Windows HPC Server 2008; Red Hat Enterprise Linux 5.x; Red Hat Enterprise Linux 6; SuSE Linux Enterprise Server 10; SuSE Linux Enterprise Server 11; SunSoft Solaris 10; VMware ESX; VMware ESXi 4.1; VMware ESXi 5

Data Link Protocols Supported	10 Gigabit Ethernet

Lifecycle Status	Obsolete; no longer available for sale
Data Transfer Rate	10 Gbps per port
Bi-directional Bandwidth	20 Gb/s per port; 40 Gb/s per adapter theoretical bandwidth

Networking Ports & Interfaces

Ports	2 x 10Gb Ethernet SFP+ ports
Port Type	SFP+
Port Count	2 ports
Network Processor	Cavium 57810S
Data Link Protocol	10 GigE
Interface (Bus) Type	PCI Express 2.0 x8
Remote Management Protocols	SNMP

HPE Hewlett Packard Enterprise 665243-B21 10Gb 2-port adapter