Your go-to destination for cutting-edge server products

867327-B21 HPE 621SFP28 10/25GB Ethernet 2-Port Network Adapters.

867327-B21
* Actual product may vary from image shown.
Hover on image to enlarge

Brief Overview of 867327-B21

HPE 867327-B21 Ethernet 10/25GB 2-Port 621SFP28 Network Adapters. Excellent Refurbished with 1 year replacement warranty

Contact us for a price
Ask a question

Additional 7% discount at checkout

SKU/MPN867327-B21Availability✅ In StockProcessing TimeUsually ships same day ManufacturerHPE Manufacturer WarrantyNone Product/Item ConditionExcellent Refurbished ServerOrbit Replacement Warranty1 Year Warranty
Google Top Quality Store Customer Reviews
Our Advantages
Payment Options
  • — Visa, MasterCard, Discover, and Amex
  • — JCB, Diners Club, UnionPay
  • — PayPal, ACH/Bank Transfer (11% Off)
  • — Apple Pay, Amazon Pay, Google Pay
  • — Buy Now, Pay Later - Affirm, Afterpay
  • — GOV/EDU/Institutions PO's Accepted 
  • — Invoices
Delivery
  • — Deliver Anywhere
  • — Express Delivery in the USA and Worldwide
  • — Ship to -APO -FPO
  • For USA - Free Ground Shipping
  • — Worldwide - from $30
Description

HPE Dual-Port 621SFP28 Adapter

The HPE 867327-B21 Ethernet 10/25Gb 2-Port 621SFP28 Network Adapter is engineered to deliver high‑performance connectivity, enhanced throughput, and reliable data transfer for modern enterprise infrastructures. Designed for demanding workloads, this adapter ensures efficient networking across virtualized environments, cloud platforms, and data‑intensive applications.

Main Details

  • Brand: Hewlett Packard Enterprise (HPE)
  • Model Number: 867327-B21
  • Device Category: High-speed network interface adapter

Technical Specifications

Performance & Data Throughput

  • Dual-port configuration supporting up to 25 Gbps per port
  • Delivers an aggregate theoretical bandwidth of 50 Gbps bi-directional
  • Optimized for low latency and high-efficiency packet processing

Hardware Architecture

  • Form Factor: Standard low-profile PCIe stand-up adapter
  • Interface: PCI Express 3.0 x8 for fast host communication
  • Connector Type: Two SFP28 (Small Form-factor Pluggable 28) slots
  • Network Processor: Cavium QL41401 for advanced offloading capabilities

Energy Efficiency

  • Typical Power Draw: 8.4W
  • Maximum Consumption: 9.7W
  • Designed for reduced heat output and improved system efficiency

Standards & Protocol Support

  • IEEE 802.3by for 25 Gigabit Ethernet
  • IEEE 802.3ad for Link Aggregation (LACP)
  • IEEE 802.1Q for VLAN tagging and segmentation
  • Compatible with modern datacenter switching technologies

Physical Characteristics

Dimensions & Packaging

  • Approximate packaged size: 7.5 × 2.25 × 9.5 inches
  • Compact design suitable for dense server environments

867327-B21 Ethernet 2-Port 621SFP28 Network Adapter

The HPE 867327-B21 Ethernet 10/25GB 2-Port 621SFP28 Network Adapter represents a critical advancement in high-speed networking technology, designed to meet the growing demands of modern data centers, enterprise IT environments, and cloud infrastructure. As data traffic continues to expand exponentially due to virtualization, big data analytics, artificial intelligence workloads, and hybrid cloud adoption, organizations require reliable, scalable, and high-performance network adapters capable of handling increasing throughput demands without compromising efficiency.

This category of network adapters focuses on delivering dual-port connectivity with flexible 10GbE and 25GbE speeds, enabling businesses to future-proof their infrastructure while maintaining compatibility with existing network architectures. The adapter’s design aligns with industry standards, ensuring seamless integration with a wide range of servers and networking environments.

High-Speed Data Transfer Capabilities

Dual-Port Performance Architecture

The dual-port configuration of the HPE 867327-B21 adapter provides enhanced bandwidth aggregation and redundancy, allowing organizations to distribute workloads effectively across multiple network paths. Each port supports both 10Gb and 25Gb Ethernet speeds, offering flexibility for gradual network upgrades without requiring immediate infrastructure overhauls.

This adaptability is particularly beneficial in environments transitioning from legacy 10Gb networks to higher-speed 25Gb architectures. By supporting both speeds, the adapter ensures compatibility with existing switches and cabling while enabling future scalability.

Enhanced Efficiency Through Advanced Networking Technologies

Support for Virtualization and Cloud Environments

Virtualized environments demand network adapters capable of managing multiple virtual machines and containers simultaneously. The HPE 867327-B21 adapter includes support for virtualization technologies such as SR-IOV (Single Root I/O Virtualization), which allows multiple virtual instances to share a single physical network interface while maintaining performance isolation.

This capability reduces CPU overhead, improves network efficiency, and enhances scalability in cloud and virtualized data centers. As organizations increasingly adopt hybrid and multi-cloud strategies, such features become essential for maintaining performance consistency across distributed environments.

Offloading Capabilities for Reduced CPU Utilization

To maximize server performance, the adapter incorporates advanced offloading technologies that shift network processing tasks away from the CPU. These include TCP/IP offloading, checksum offloading, and large send offload capabilities, all of which contribute to reduced CPU utilization and improved overall system performance.

By minimizing the processing burden on the server’s central processor, the adapter allows more resources to be allocated to application workloads, enhancing efficiency and responsiveness across the IT environment.

Scalability and Flexibility in Data Center Deployments

Seamless Integration with Existing Infrastructure

One of the key advantages of the HPE 867327-B21 network adapter category is its compatibility with a wide range of server platforms and networking equipment. Its SFP28 interface supports various transceivers and direct attach cables, providing flexibility in deployment and connectivity options.

This flexibility allows IT administrators to tailor network configurations to specific requirements, whether connecting to top-of-rack switches, aggregation layers, or storage networks. The adapter’s compatibility with industry-standard protocols ensures smooth integration without requiring extensive configuration changes.

Future-Proof Networking Investment

As data center technologies evolve, organizations must invest in hardware that can adapt to future demands. The dual-speed capability of the HPE 867327-B21 adapter ensures that it remains relevant as network speeds increase and infrastructure requirements change.

By supporting both current and next-generation Ethernet speeds, this adapter enables businesses to extend the lifespan of their networking investments while minimizing the need for frequent hardware upgrades.

Reliability and Enterprise-Grade Design

Robust Hardware Engineering

Enterprise environments require networking components that deliver consistent performance under demanding conditions. The HPE 867327-B21 adapter is built with high-quality components and rigorous engineering standards to ensure durability and reliability.

Its design includes features such as advanced error detection, correction mechanisms, and thermal management to maintain stable operation even in high-density server environments. This reliability is essential for maintaining uptime and preventing costly disruptions in mission-critical systems.

Redundancy and Failover Capabilities

The dual-port design not only enhances performance but also provides redundancy, allowing for failover configurations that ensure continuous network connectivity in case of port or link failure. This is particularly important in environments where downtime is not an option, such as financial services, healthcare systems, and large-scale e-commerce platforms.

By supporting link aggregation and failover mechanisms, the adapter contributes to a resilient network architecture capable of maintaining operations even in the face of hardware or connectivity issues.

Network Isolation and Traffic Segmentation

The adapter also supports advanced network segmentation techniques, allowing organizations to isolate traffic between different applications, departments, or tenants. This segmentation enhances security by limiting the scope of potential breaches and preventing unauthorized access to critical resources.

Such capabilities are particularly valuable in multi-tenant environments and cloud infrastructures, where maintaining strict separation between workloads is essential for compliance and data protection.

Cloud and Service Provider Environments

Cloud service providers require scalable and high-performance networking solutions to support large numbers of users and applications. The adapter’s ability to handle high traffic volumes and support virtualization makes it an ideal choice for cloud deployments.

High-Performance Computing and AI Workloads

High-performance computing environments and AI workloads demand low latency and high bandwidth to process large datasets quickly. The HPE 867327-B21 adapter provides the necessary performance to support these demanding applications, enabling faster data processing and improved outcomes.

Compatibility and Deployment Considerations

Server Compatibility

The adapter is designed to integrate seamlessly with a variety of server platforms, ensuring broad compatibility and ease of deployment. Its standardized interface and support for common operating systems make it a versatile choice for diverse IT environments.

Cabling and Transceiver Options

The SFP28 interface supports multiple connectivity options, including direct attach copper cables and optical transceivers. This flexibility allows organizations to choose the most suitable solution based on distance, cost, and performance requirements.

Adaptability to Diverse Network Topologies

Whether deployed in traditional three-tier architectures or modern leaf-spine configurations, the HPE 867327-B21 adapter adapts to various network topologies, providing the flexibility needed to support evolving infrastructure designs.

Features
Manufacturer Warranty:
None
Product/Item Condition:
Excellent Refurbished
ServerOrbit Replacement Warranty:
1 Year Warranty