665249-B21 HPE 10 Gigabit Ethernet Adapter
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HPE 665249-B21 Ethernet 10Gb 560SFP+ 2 Ports Network Adapter Bulk

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Short Description:
665249-B21 Ethernet 2 Ports SFP+ 10Gbps Gigabit Ethernet Peripheral Component Interconnect Express (PCI-E) Network Adapter for G8 G9 | Made by HPE | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
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More Information for 2 Ports Network Adapter

In the rapidly evolving landscape of information technology, networking plays a crucial role in ensuring seamless communication and data transfer within and between systems. One essential component in this domain is the network adapter, which facilitates high-speed data transfer. This article focuses on the HPE 665249-B21 Ethernet 2 Ports Small Form-Factor Pluggable Plus (SFP+) 10 Gigabytes Per Second (GBPS) Ethernet Peripheral Component Interconnect Express (PCI-E) Network Adapter for G8 G9. Let's break down the key components and features of this network adapter to understand its significance in modern computing environments.

Understanding HPE 665249-B21


The HPE 665249-B21 is a network adapter designed by Hewlett Packard Enterprise (HPE) to provide efficient and high-speed connectivity for servers. It is specifically engineered for Generation 8 (G8) and Generation 9 (G9) servers, showcasing compatibility with these server models.

Small Form-Factor Pluggable Plus (SFP+)

One notable feature of this network adapter is its utilization of the Small Form-Factor Pluggable Plus (SFP+) technology. SFP+ is a compact, hot-pluggable transceiver used for both telecommunication and data communication applications. In the context of the HPE 665249-B21, SFP+ enhances flexibility by allowing users to choose and change the type of optical transceiver according to their specific networking requirements.

10 Gigabytes Per Second (GBPS) Ethernet

The network landscape demands ever-increasing speeds to handle the growing volume of data. The HPE 665249-B21 meets this demand by providing a 10 Gigabytes Per Second (GBPS) Ethernet connection. This impressive data transfer rate ensures that the network adapter can handle large amounts of data quickly and efficiently, making it suitable for high-performance computing environments.

Peripheral Component Interconnect Express (PCI-E)

The HPE 665249-B21 utilizes the Peripheral Component Interconnect Express (PCI-E) interface. PCI-E is a high-speed serial computer expansion bus standard that allows for fast communication between various internal hardware components. By leveraging PCI-E, this network adapter can achieve optimal data transfer rates, reducing latency and enhancing overall system performance.

Key Features

Now, let's delve into the specific features that make the HPE 665249-B21 a notable choice for users seeking a high-performance network adapter.

Dual Ports for Enhanced Connectivity

One of the standout features of this network adapter is its provision of dual ports. This dual-port configuration enables simultaneous communication with multiple networks or devices, enhancing overall network efficiency. It is particularly beneficial in scenarios where redundancy and failover capabilities are critical.

Hot-Pluggable Design

The HPE 665249-B21 follows the hot-pluggable design standard. Hot-pluggable devices can be added or removed from a system without having to power down the entire system. This feature contributes to increased flexibility and ease of maintenance, as administrators can make changes to the network configuration without causing disruptions.

Network Virtualization Support

In the era of virtualization, where organizations are increasingly adopting virtualized environments, the HPE 665249-B21 stands out by providing support for network virtualization. This capability allows for the creation of multiple virtual networks on a single physical network infrastructure, optimizing resource utilization and enhancing scalability.

Energy Efficiency

Efficient power utilization is a significant concern in modern data centers. The HPE 665249-B21 addresses this concern by incorporating energy-efficient features. These features not only contribute to reduced operational costs but also align with environmentally conscious practices by minimizing power consumption.

Compatibility with G8 and G9 Servers

The HPE 665249-B21 is specifically designed for compatibility with Generation 8 (G8) and Generation 9 (G9) servers. This ensures seamless integration with HPE server systems, providing users with a network adapter that is optimized for performance within the specified server generations.

Performance and Reliability

Throughput and Latency

The 10 Gigabytes Per Second (GBPS) Ethernet capability of the HPE 665249-B21 ensures high throughput, making it suitable for demanding applications that require rapid data transfer. Additionally, the use of PCI-E contributes to low latency, enhancing the overall responsiveness of the network.

Reliability and Redundancy

The dual-port configuration of the HPE 665249-B21 enhances the reliability of network connections. In scenarios where one port experiences issues or fails, the second port can seamlessly take over, ensuring uninterrupted network connectivity. This redundancy feature is crucial for mission-critical applications that demand high availability.

Use Cases for 10 Gigabit Ethernet Adapter

Data Centers

The HPE 665249-B21 is well-suited for data center environments where high-performance networking is paramount. Its compatibility with G8 and G9 servers makes it an ideal choice for data centers that rely on HPE infrastructure. The dual-port configuration and high throughput make it suitable for handling the substantial data traffic typical in data center environments.

Virtualized Environments

In virtualized environments, where multiple virtual machines coexist on a single physical server, efficient networking is essential. The HPE 665249-B21's support for network virtualization aligns with the requirements of virtualized environments, enabling the creation and management of virtual networks with ease.

High-Performance Computing

Applications in the realm of high-performance computing often involve the rapid processing of large datasets. The HPE 665249-B21's 10 Gigabytes Per Second (GBPS) Ethernet capability ensures that it can keep up with the demanding data transfer requirements of high-performance computing applications, making it a valuable asset in this field.

General Information about this HPE 665249-B21

  • Manufacturer: HPE
  • Part Number or SKU# 665249-B21
  • Product Name: Network Adapter
  • Product Type: 2 Port Adapter

Networking of 2 Ports Adapter

  • Form Factor: Stand Up - Plug-in Card
  • Interface (Bus) Type: PCI Express 2.0 x8
  • PCI Specification Revision: PCI 2.0
  • Bundled with: Low Profile Bracket
  • Connectivity Technology: Wired
  • Data Link Protocol: 10 Gigabit Ethernet
  • Data Rate: 2 ports, each at 10Gbps
  • Features: VLAN support, IPv6 support, Jumbo Frames support, IPv4 support, PXE support, TCP Segmentation Offload (TSO)
  • Network / Transport Protocol: TCP/IP, UDP/IP
  • Ports: 10Gb Ethernet x 2
  • Status Indicators: Port status, link/activity
  • IEEE Compliance: 802.3, 802.1ab, 802.3x, 802.3ad, 802.1p/ 802.1q, 802.3ae, 802.1Qau, 1588

Expansion / Connectivity

  • Compatible Slots: 1 x PCI Express 2.0 x8
  • Interfaces: 2 x 10Gb Ethernet - SFP+

Processor / Memory

  • Network Processor: Intel® 82599 Controller (Intel Ethernet Converged Network Adapter X520-DA2)
  • RAM: 256 MB


  • Power Consumption Operational: 10 Watt

Environmental Parameters

  • Operating Temperature: 0° to 55°C (32° to 131°F)
  • Non-Operating Temperature: -65° to 85° C (-85° to 185° F)
  • Operating Humidity: 10% to 90% non-condensing
  • Non-operating Humidity: 5% to 95% non-condensing


  • HPE ProLiant DL Series: DL160 Gen8, DL160 Gen8 Base, DL180 Gen9, DL180 Gen9 Base, DL180 Gen9 Entry, DL180 Gen9 Storage, DL20 Gen9, DL20 Gen9 Entry, DL20 Gen9 Performance, DL20 Gen9 Solution, DL320e Gen8, DL320e Gen8 Base, DL320e Gen8 Entry, DL320e Gen8 Performance, DL360e Gen8, DL360e Gen8 Base, DL360e Gen8 Entry, DL360e Gen8 Performance, DL360e Gen8 Special Server, DL360p Gen8, DL360p Gen8 CMS, DL360p Gen8 Special Server, DL380 Gen9 High Performance, DL380e Gen8, DL380e Gen8 Base, DL380e Gen8 Entry, DL380e Gen8 High Performance, DL380e Gen8 Storage, DL380p Gen8 Special, DL385p Gen8, DL385p Gen8 Dedicated Workload, DL385p Gen8 Entry, DL385p Gen8 Maximized Consolidation, DL385p Gen8 Storage, DL560 Gen8, DL560 Gen8 Base, DL560 Gen8 Entry, DL560 Gen8 Performance, DL560 Gen9, DL560 Gen9 Base, DL560 Gen9 Entry, DL560 Gen9 Performance, DL80 Gen9 Entry
  • HPE ProLiant XL Series: XL170r Gen9, XL190r Gen9, XL270d Gen9
  • HPE SimpliVity: 380 Gen9 Node
  • HPE StoreEasy: 1450, 1850, 3850 Gateway Single Node

Finally, the HPE 665249-B21 Ethernet 2 Ports Small Form-Factor Pluggable Plus (SFP+) 10 Gigabytes Per Second (GBPS) Ethernet Peripheral Component Interconnect Express (PCI-E) Network Adapter for G8 G9 is a robust and versatile networking solution. Its combination of advanced technologies, dual-port configuration, and compatibility with HPE servers make it a compelling choice for various use cases, including data centers, virtualized environments, and high-performance computing. By providing high throughput, low latency, and reliability, this network adapter contributes to the overall efficiency and performance of modern IT infrastructures. As technology continues to advance, network adapters like the HPE 665249-B21 play a pivotal role in shaping the connectivity landscape and supporting the evolving needs of businesses and organizations worldwide.

Product Condition:
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Warranty provided by ALLHDD.COM:
30 Days

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