HPE 766490-B21 2 Ports Adapter
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766490-B21 HPE FlexFabric 10GBPS 2-Port Adapter 536FLB Refurbished

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Part Number#: 766490-B21
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Short Description:
766490-B21 FlexFabric 2-Ports Gigabits Per Second (10GBPS) Gigabit Ethernet Peripheral Component Interconnect Express (PCIe or PCI-E) 3.0 x8 Network Adapter | Made by HPE | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Overview of Adapter

The HPE 766490-B21 is a state-of-the-art network adapter designed to meet the demanding requirements of high-performance computing environments. It is equipped with dual ports, providing Gigabit Ethernet connectivity through the Peripheral Component Interconnect Express (PCIe) interface. This adapter stands out for its flexibility and efficiency in handling data transfer, making it a valuable asset for businesses and organizations seeking optimal network performance.

Gigabit Ethernet: Enhancing Network Speeds

  • Gigabit Ethernet is a standard for transmitting Ethernet frames at a rate of 1 gigabit per second (GBPS). The HPE 766490-B21 FlexFabric Network Adapter supports this high-speed technology, allowing for swift and reliable data transfers within a network. This capability is particularly essential for data-intensive applications, virtualization, and other scenarios where low latency and high bandwidth are critical.

Dual-Ports Configuration: Maximizing Connectivity

  • One notable feature of the HPE 766490-B21 is its dual-ports configuration. This means that the adapter has two separate physical connections, enabling it to handle simultaneous data transmissions. This not only enhances overall network throughput but also provides redundancy, ensuring continuous operation even if one port experiences issues. The dual-ports configuration is especially advantageous in environments where network reliability is paramount.

PCIe Interface: Accelerating Data Transfer

  • The Peripheral Component Interconnect Express (PCIe) interface is a high-speed serial computer expansion bus standard that allows for the rapid exchange of data between the network adapter and the motherboard. The HPE 766490-B21 utilizes the PCIe interface, capitalizing on its efficiency and scalability. This choice of interface is pivotal in maximizing the adapter's performance, reducing latency, and supporting the high data transfer rates associated with modern networking demands.

Key Specifications

  • To gain a comprehensive understanding of the HPE 766490-B21, it's essential to delve into its key specifications:

Data Transfer Rate

  • The network adapter boasts a remarkable data transfer rate of 10 gigabits per second (10 GBPS), aligning with industry standards for high-speed networking.

Form Factor

  • The form factor refers to the physical size and shape of the adapter. In the case of the HPE 766490-B21, it typically adheres to standard PCIe card dimensions, ensuring compatibility with a wide range of systems.


  • The adapter is engineered to be compatible with various servers and computing systems, making it a versatile choice for different network configurations.

Advanced Features

  • Look out for advanced features such as offloading capabilities, virtualization support, and Quality of Service (QoS) enhancements, which contribute to the adapter's overall performance and efficiency.

Benefits of HPE 766490-B21 in Practical Scenarios

  • Understanding the technical specifications is crucial, but it is equally important to grasp how these features translate into tangible benefits for end-users. Here are some practical scenarios where the HPE 766490-B21 excels:

Data Center Optimization

  • In data center environments where rapid data access and transfer are paramount, the dual-ports configuration and Gigabit Ethernet support ensure optimal performance and reliability.

Virtualization Environments

  • The adapter is well-suited for virtualized environments, where multiple virtual machines require efficient network connectivity. The dual-ports configuration allows for effective network segregation and management in virtualized setups.

High-Performance Computing (HPC)

  • For HPC applications, where massive computational power is harnessed, the high data transfer rates of the HPE 766490-B21 contribute to seamless communication between nodes, accelerating overall processing capabilities.

Business Continuity

  • The dual-ports configuration not only enhances performance but also provides a failover mechanism. In the event of a port failure, the other port can seamlessly take over, ensuring continuous network operation and minimizing downtime.

Technical specifications

  • The HPE FlexFabric 10GBPS 2-Port 536flb Gigabit Ethernet Network Adapter (part number 766490-B21) is a high-performance network adapter designed for use in data centers and enterprise environments. It is designed to support the FlexFabric architecture and provides connectivity for 10Gbps Ethernet networks.
  • The adapter features two ports, allowing for connection to multiple network devices or switches. It uses the 536flb form factor, which is designed for use in HPE ProLiant servers.
  • The adapter supports various networking protocols, including TCP/IP, UDP, and iSCSI. It also supports advanced features such as VLAN tagging, jumbo frames, and Quality of Service (QoS) to ensure optimal network performance.
  • The adapter is also equipped with advanced security features, including support for IEEE 802.1x and IPv6 security. It also supports various virtualization technologies, including VMware vSphere and Microsoft Hyper-V.
  • The HPE FlexFabric 10GBPS 2-Port 536flb Gigabit Ethernet Network Adapter is designed for use in a wide range of data center and enterprise environments, making it an ideal solution for organizations looking for high-performance, reliable network connectivity.

FlexFabric Technology

The HPE FlexFabric 10GBPS 2-Port 536flb Gigabit Ethernet Network Adapter is a networking device that allows for high-speed data transfer between computers and other devices. It uses FlexFabric technology, which is a set of protocols and technologies that allow for the efficient and flexible configuration of network connections. This adapter has two ports, allowing for the connection of multiple devices, and supports speeds of up to 10 gigabits per second (10GBPS) for fast data transfer. It also has a 536flb (FlexibleLOM) form factor, which allows for easy installation in a variety of server and storage systems. Overall, this adapter is a powerful and versatile solution for high-speed data transfer in enterprise environments.

High-speed connectivity

The HPE FlexFabric 10GBPS 2-Port 536flb Gigabit Ethernet Network Adapter (part number 766490-B21) is a high-speed network adapter designed for use in HPE servers and other compatible systems. It provides fast and reliable connectivity to both 10 Gbps and 1 Gbps networks, allowing for efficient transfer of large amounts of data. The adapter is equipped with two ports, allowing for connection to multiple networks or devices. The 536flb in the part number indicates that it is compatible with HPE FlexFabric switches, which are designed to handle high-traffic environments.

Main Information about this HPE 766490-B21

  • Manufacturer: HPE
  • Part Number or SKU# 766490-B21
  • Type: Networking
  • Adapter-Type: Network Adapter 2 Ports
  • Interface (Bus) Type: PCI Express 3.0 X8


  • Ports: 10 GB Ethernet X 2
  • Connectivity Technology: Wired
  • Data Link Protocol: 10 GIGE
  • Data Transfer Rate: 10 GBPS
  • Network / Transport Protocol: TCP/IP
  • Remote Management Protocol: SNMP
  • Features: VLAN Support, Full Duplex Mode, Jumbo Frames Support, Pxe Support, Large Send Offload (Lso), Single Root I/O Virtualization (Sr-Iov), Tcp Segmentation Offload (Tso), Qos Tagging, Extended Message-Signaled Interrupts (Msi-X), TCP/Ip Checksum Offload, Udp/Ip Checksum Offload
  • Compliant Standards : IEEE 802.3, IEEE 802.1q, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (Lacp), IEEE 802.3ae, IEEE 802.3p, IEEE 802.1ab (Lldp), IEEE 802.3ap, IEEE 802.1qau

Expansion / Connectivity

  • Expansion Slots: 1 X Flexiblelom

In short, the HPE 766490-B21 FlexFabric Dual-Ports Gigabit Ethernet PCIe Network Adapter stands as a formidable solution for organizations seeking to enhance their network capabilities. With its dual-ports configuration, Gigabit Ethernet support, and PCIe interface, it addresses the challenges of modern computing environments, including data centers, virtualization setups, and high-performance computing applications. As technology continues to advance, network adapters like the HPE 766490-B21 play a pivotal role in empowering high-performance networks, fostering seamless communication, and supporting the ever-growing demands of the digital era.

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

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product 766490-B21 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.

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